Answers
Answer:
\(P_2=1.90atm\)
Explanation:
Hello!
In this case, according to the ideal gas equation ratio for two states:
\(\frac{P_1V_1}{P_2V_2} =\frac{n_1RT_1}{n_2RT_2}\)
Whereas both n and R are cancelled out as they don't change, we obtain:
\(\frac{P_1V_1}{P_2V_2} =\frac{T_1}{T_2}\)
Thus, by solving for the final pressure, we obtain:
\(\frac{P_2V_2}{P_1V_1} =\frac{T_2}{T_1}\\\\P_2=\frac{T_2P_1V_1}{V_2T_1}\)
Now, since initial conditions are 1.00 atm, 273.15 K and 17 L and final temperature and volume are 94 + 273 = 367 K and 12 L respectively, the resulting pressure turns out to be:
\(P_2=\frac{367K*1.00atm*17L}{12L*273.15K}\\\\P_2=1.90atm\)
Best regards!
Related Questions
Which of these pairs of solutions result in a precipitate when they are mixed?A.magnesium chloride and silver nitrate B.sodium sulfate and magnesium nitrate C.sodium chloride and potassium nitrate D.sodium hydroxide and nitric acid
Answers
Answer: the pair magnesium chloride and silver nitrate (letter A) would result in a precipitate when mixed
Explanation:
The question requires us to determine which mixture among the options given , would result in a precipitate.
To olve this problem, we'll need to analyze the chemcical reacton that happens when the mixtures o f solutions are made.
Note that most of the reactions between the soluions wgiven ill ahappen through a double displacement mechanism, which can be written as:
\(AB+CD\rightarrow AD+CB\)A) mixing magnesium chloride (MgCl2) and silver nitrate (AgNO3) would produce silver choride (AgCl) and magnesium nitrate (Mg(NO3)2):
\(MgCl_2+2AgNO_3\rightarrow2AgCl+Mg(NO_3)_2\)B) Mixing sodium sulfate (Na2SO4) and magnesium nitrate (Mg(NO3)2) produces sodium nitrate (NaNO3) and magnesium sulfate (MgSO4):
\(Na_2SO_4+Mg(NO_3)_2\rightarrow2NaNO_3+MgSO_4\)C) Mixing sodium chloride (NaCl and opotassium nitrate (KNO3) produces sodium nitrate (NaNO3) and potassium chloride (KCl):
\(NaCl+KNO_3\rightarrow NaNO_3+KCl\)D) Mixing sodium hydroxide (NaOH) and nitric acid (HNO3) results in the formation of the salt odium nitrate (NaNO3) and water (H2O):
\(NaOH+HNO_3\rightarrow NaNO_3+H_2O\)Among the list of possible products obtained (AgCl, Mg(NO3)2, NaNO3, MgSO4, KCl and H2O), only silver chloride presents low solubility in water, thus it would form a precipitate in aqueous medium.
Therefore, the pair magnesium chloride and silver nitrate (letter A) would result in a precipitate when mixed.
write the products that form for the following reaction Al + Ca(NO3)2
Answers
The following balanced chemical equation may be used to describe the interaction between aluminum (Al) and calcium nitrate (Ca(NO₃)₂):
2 Al + 3 Ca(NO₃)₂ → 2 Al(NO₃)3 + 3 Ca
Reactants are the chemicals that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.
The substances that initiate a chemical reaction. Products are the substances that are created during the reaction. Compounds or elements can act as reactants and products.
Aluminium and calcium nitrate interact in this reaction to form aluminium nitrate (Al(NO₃)₃) and calcium (Ca), which are the end products.
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Which represents the size of a population?
the birth rate
number of species in an area
the death rate
number of indivduals in a species
Pls hurry
Answers
Answer:
The Answer is D
Explanation:
Populations are shown by seeing how many speecies are in the area.
The number of individuals in a species represents the size of a population. hence, the last option is correct.
What is the population size?It is the actual no of individuals in the population.
The density of the population refers to the measurement of population size for per unit area.
So based on this, we can say that The number of individuals in a species represents the size of a population. hence, the last option is correct.
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Which of the following statements is true about the strength of the intermolecular forces in CH4 and NH3?
a.CH4 ≥ NH3 because CH4 is tetrahedral but NH3 is pyramidal.
b.CH4 < NH3 because δ− on C in the CH bond is greater than δ− on N in the NH bond.
c.CH4 < NH3 because the NH bond is more polar than the CH bond.
d.CH4 ≥ NH3 because CH4 has H bonding but NH3 has dispersion forces.
Answers
Answer:
c.CH4 < NH3 because the NH bond is more polar than the CH bond.
Explanation:
Define critical point. Group of answer choices The temperature and pressure below which a supercritical fluid exists. The temperature and pressure above which a supercritical fluid exists. The temperature and pressure are equal. The temperature and pressure are not equal. The temperature and pressure where liquid, solid, and gas are equally stable and are in equilibrium.
Answers
Answer:
The temperature and pressure below which a supercritical fluid exists.
Explanation:
Critical point is a region on the phase diagram where fluid phases (liquids and gases) have the equal density.
This is caused by increased temperature and pressure of the fluid particles in a confided container. Supercritical fluids exist in a state above critical point.
I hope this explanation was clear.
Determine the total kilojoules in two tablespoons
Answers
The total kilojoules in two tablespoons is 836.8 kJ.
To determine the total kilojoules in two tablespoons of a substance, we need to know the specific substance and its energy content per tablespoon. Different substances have different energy values, so without this information, it is not possible to provide an accurate calculation.
The energy content of food or substances is typically measured in kilocalories (kcal) or kilojoules (kJ). 1 kilocalorie is equal to 4.184 kilojoules. The energy content of a substance is often listed on food labels or in nutritional databases.
For example, if we have the energy content of a substance as 100 kilocalories (kcal) per tablespoon, we can convert it to kilojoules by multiplying it by 4.184:
100 kcal * 4.184 kJ/kcal = 418.4 kJ
So, if we have two tablespoons of this substance, the total energy would be:
418.4 kJ/tablespoon * 2 tablespoons = 836.8 kJ
It's important to note that the energy content of a substance can vary depending on its composition, density, and other factors. Therefore, it is always recommended to refer to reliable sources such as food labels, nutritional databases, or consult a qualified professional to obtain accurate information regarding the energy content of specific substances.
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Do you think the offspring produced by the two processes are genetically identical to organism 1? Explain your reasoning.
Font Sizes
Answers
Answer:
No they are not
Explanation:
I believe that if you under go 1 process then you only get half of the first organism but if you undergo 2 processes then you only get 1/4 of the first organism, but imight be mistaken so sorry if it is wrong.
Balance each of the following equations according to the half-reaction method: (a) Zn(s)+NO3−(aq)⟶Zn2+(aq)+N2(g)(in acid) (b) Zn(s)+NO3−(aq)⟶Zn2+(aq)+NH3(aq)(in base) (c) CuS(s)+NO3−(aq)⟶Cu2+(aq)+S(s)+NO(g)(in acid) (d) NH3(aq)+O2(g)⟶NO2(g)(gas phase) (e) H2O2(aq)+MnO4−(aq)⟶Mn2+(aq)+O2(g)(in acid) (f) NO2(g)⟶NO3−(aq)+NO2−(aq)(in base) (g) Fe3+(aq)+I−(aq)⟶Fe2+(aq)+I2(aq)
Answers
The balanced equation of the redox reactions by the half-reaction method is as follows:
(a) Zn(s) + 4 H+(aq) + NO₃⁻(aq) ⟶ Zn²⁺ (aq) + 2 H₂O(l) + N₂(g)
(b) Zn(s) + 2 OH⁻(aq) + NO₃⁻(aq) ⟶ Zn(OH)₂(aq) + NH₃(aq)
(c) CuS(s) + 6 H⁺(aq) + 2 NO₃⁻(aq) ⟶ Cu²⁺(aq) + S(s) + 2 NO(g) + 3 H₂O(l)
(d) 4 NH₃(aq) + 5 O₂(g) ⟶ 4 NO₂(g) + 6 H₂O(l)
(e) 2 H₂O₂(aq) + 2 MnO₄⁻(aq) ⟶ 2 Mn²⁺(aq) + 5 O₂(g) + 4 H₂O(l)
(f) 3 NO₂ (g) + 2 OH⁻ (aq) ⟶ 3 NO₃⁻ (aq) + NO₂⁻ (aq) + H₂O(l)
(g) 2 Fe³⁺ (aq) + 2 I⁻ (aq) ⟶ 2 Fe²⁺ (aq) + I₂ (aq)
What are half-reactions in redox reactions?Half reactions refer to the separate reactions that represent the oxidation and reduction processes occurring in the overall redox reaction.
Considering the given redox reactions:
(a) Zn(s) + 4 H+(aq) + NO₃⁻(aq) ⟶ Zn²⁺ (aq) + 2 H₂O(l) + N₂(g)
Half-reaction (oxidation): Zn(s) ⟶ Zn²⁺(aq) + 2 e⁻
Half-reaction (reduction): 4 H+(aq) + NO₃⁻(aq) + 3 e⁻ ⟶ 2 H₂O(l) + N₂(g)
(b) Zn(s) + 2 OH⁻(aq) + NO₃⁻(aq) ⟶ Zn(OH)₂(aq) + NH₃(aq)
Half-reaction (oxidation): Zn(s) + 4 OH⁻(aq) ⟶ Zn(OH)₂(aq) + 2 e⁻
Half-reaction (reduction): NO₃⁻ aq) + 8 H₂O(l) + 6 e⁻ ⟶ NH₃(aq) + 9 OH⁻ (aq)
(c) CuS(s) + 6 H⁺(aq) + 2 NO₃⁻(aq) ⟶ Cu²⁺(aq) + S(s) + 2 NO(g) + 3 H₂O(l)
Half-reaction (oxidation): CuS(s) ⟶ Cu²(aq) + S(s) + 2 e⁻
Half-reaction (reduction): 6 H⁺(aq) + 2 NO₃⁻(aq) + 6 e⁻ ⟶ 2 NO(g) + 3 H₂O(l)
(d) 4 NH₃(aq) + 5 O₂(g) ⟶ 4 NO₂(g) + 6 H₂O(l)
Half-reaction (oxidation): 4 NH₃(aq) ⟶ 4 NO₂(g) + 8 H⁺(aq) + 8 e⁻
Half-reaction (reduction): 5 O₂(g) + 10 H₂O(l) + 10 e⁻ ⟶ 20 OH⁻(aq)
(e) 2 H₂O₂(aq) + 2 MnO₄⁻(aq) ⟶ 2 Mn²⁺(aq) + 5 O₂(g) + 4 H₂O(l)
Half-reaction (oxidation): 2 H₂O₂(aq) ⟶ 4 H⁺(aq) + 4 e⁻ + O₂(g)
Half-reaction (reduction): 2 MnO₄⁻(aq) + 16 H⁺ (aq) + 10 e⁻ ⟶ 2 Mn²⁺ (aq) + 8 H₂O (l)
(f) 3 NO₂ (g) + 2 OH⁻ (aq) ⟶ 3 NO₃⁻ (aq) + NO₂⁻ (aq) + H₂O(l)
Half-reaction (oxidation): 3 NO₂(g) + 6 OH⁻(aq) ⟶ 3 NO₃⁻ (aq) + 3 e⁻ + 3 H₂O(l)
Half-reaction (reduction): 3 NO₂ (g) + 2 e⁻ ⟶ 3 NO₂⁻ (aq)
(g) 2 Fe³⁺ (aq) + 2 I⁻ (aq) ⟶ 2 Fe²⁺ (aq) + I₂ (aq)
Half-reaction (oxidation): 2 Fe³⁺ (aq) ⟶ 2 Fe²⁺ (aq) + 2 e⁻
Half-reaction (reduction): 2 I⁻ (aq) ⟶ I₂ (aq) + 2 e⁻
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D is a green crystalline solid that dissolves in water to give a very pale green solution. Addition of sodium hydroxide solution to a solution of D produces a green precipitate, E, which turns orange-brown around the top after standing in air. Addition of dilute hydrochloric acid and barium chloride solution to a solution of D gives a white precipitate, F. a State the names of D, E and F.
Answers
The chemical D is FeSO4 · 7H2O which is a green crystalline solid. When dissolved in water it gives a very pale green solution. The chemical E is Fe(OH)3 which is reddish brown in color. The chemical F is BaSO4 which is white in color.
D = FeSO4 · 7H2O hydrated ferrous sulfate.
E = Fe(OH)3 ferric hydroxide
F= BaSO4 barium sulphate
A chemical response happens while one or extra chemical substances are modified into one or extra different chemicals. For Example iron and oxygen combine to make rust. vinegar and baking soda combine to make sodium acetate, carbon dioxide, and water. techniques concerning the atomic nucleus are called nuclear reactions. The substances that participate in a chemical reaction are known as reactants.
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In three to five sentences, identify the type of bonding that would form between potassium (K) and chlorine (Cl). Use electronegativity to justify this bond type. Provide the chemical formula for the resulting compound.
(two sentences is good enough tbh)
Answers
Answer:
when potassium reacts with chlorine, the former loses its valence electron and the latter takes it. The two resulting ions, i.e. the potassium cation and the chloride anion, are then bonded together by the electrostatic force of attraction → an ionic bond is formed.
Explanation:
One ion of the element Potassium combine with one ion of the element chlorine to form the compound potassium chloride in fixed proportion
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
There are two types of compound, covalent compound and ionic compound. Covalent compound are formed by sharing of electron and ionic compound formed by complete transfer of electron.
According to our question sodium is a metal so it can donate its electron to chlorine and hence form ionic bond. Chlorine is more electronegative than sodium so it can take electron from sodium easily.
The balanced equation is
Na⁺+Cl⁻\(\rightarrow\) NaCl
So from this we can see that One atoms of element Potassium combine with one atom of the element chlorine to form the ionic Compound Potassium chloride.
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Nitrogen and water react to form nitrogen monoxide and hydrogen, like this: N2(g) + 2H2O(g) → 2NO(g) +2H2(g)Also, a chemist finds that at a certain temperature the equilibrium mixture of nitrogen, water, nitrogen monoxide, and hydrogen has the following composition: compound pressure at equilibrium N2 0.25 M H20 1.3 M NO 0.33 M H2 1.2 MCalculate the value of the equilibrium constant for this reaction. Round your answer to significant digits.
Answers
Answer: The value of the equilibrium constant for this reaction is 0.37
Explanation:
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as \(K_c\)
For the given chemical reaction:
\(N_2(g)+2H_2O(g)\rightarrow 2NO(g)+2H_2(g)\)
The expression for \(K_c\) is written as:
\(K_c=\frac{[NO]^2\times [H_2]^2}{[H_2O]^2\times [N_2]^1}\)
\(K_c=\frac{(0.33)^2\times (1.2)^2}{(1.3)^2\times (0.25)^1}\)
\(K_c=0.37\)
Thus the value of the equilibrium constant for this reaction is 0.37
10. When dissolved in water, most Group 1 metal salts can be described as
strong electrolytes.
strong acids.
weak electrolytes.
A
B
C
D
non-electrolytes.
(1)
Answers
When dissolved in water, most Group 1 metal salts can be described as strong electrolytes.
When Group 1 metal salts are dissolved in water, they can be described as strong electrolytes. This is because Group 1 metals, such as lithium (Li), sodium (Na), potassium (K), and so on, readily lose their outermost valence electron to form positive ions (cations). These cations then dissociate completely in water, separating from the anions to which they were originally bonded.
The dissociation of Group 1 metal salts in water results in the formation of positively charged metal ions and negatively charged non-metal ions (anions). These ions are free to move and conduct electric current, making the solution a good conductor of electricity. The complete dissociation of Group 1 metal salts in water and the presence of freely moving ions make them strong electrolytes.
Strong electrolytes are substances that ionize completely or almost completely in solution, producing a high concentration of ions. This is in contrast to weak electrolytes, which only partially ionize and produce a lower concentration of ions.
In summary, when Group 1 metal salts are dissolved in water, they form strong electrolytes due to their ability to dissociate completely into ions, leading to a high concentration of freely moving ions in the solution, thus enabling efficient electrical conductivity.
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5 Boron has two types of atom, shown below.
What is different about these two atoms?
1 What name is given to atoms like these?
Describe each atom in shorthand form, as in 3.
What is the nucleon number of atom A?
is atom B heavier, or lighter than atom A?
1 Give the electronic configuration for A and B.
ii Comment on your answer for i.
foto
Answers
Explanation:
1. atom B has more neutrons than atom A
2. the name for this is Isotopes
3.atom A is lighter
Explain why phosphorus pentafluoride, PF5 is a stable well known molecule but the very similar molecule NF5 where the phosphorus is replaced by nitrogen doe not exist
Answers
There are vacant orbitals on the phosphorus atom that allows it to expand its octet.
Why is it that the phosphorus pentafluoride is stable?There is a concept that we would need to consider as we are answering the question that we here and that is the idea of the octet rule. The octet rule states that it is only about eight electrons that can be found on the outermost shell of an atom and as such all of the compounds can be formed in obedience to this rule.
Now we should know that there are no vacant d orbitals that are present on the nitrogen atom and this stems from the fact that it does not have a 3d level as such there are no orbitals that can be able to help the Nitrogen atom so as to be able to expand its octet. This is the reason why its pentafluoride can be easily formed.
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Label one of the test tubes Fe2+. Add 4 milliliters of iron(II) sulfate to the test tube.
Label the other test tube Fe3+. Add 4 milliliters of iron(III) nitrate to the test tube.
Add 4 milliliters of potassium thiocyanate to each test tube.
Observe the contents of the test tubes, noting any evidence of a chemical reaction. Record your observations in the table. If there is no evidence of a reaction, write “no reaction.”
Answers
Answer: A: Has little to no reaction; might turn slightly red in color. B: The liquid grows darker in color to a more reddish tone.
Explanation: I didn’t have the necessary materials to complete the experiment so the teacher told me and I put it in my own words.
Methane undergoes complete combustion. a) substitute symbols and formulas for words b) predict the products. If no reaction occurs, write "NR" after the yields sign. c) include abbreviations for the physical state d) balance the equation
Answers
a) assuming we are meant to write the formulas for the compounds in the question, we want to write the formula for methane. Methane is compouded by 1 carbon atom and 4 hydrogen atoms, so it has the formula: CH₄.
b) we know it is a complete combustion. A complete combustion of some compound is always its reaction with oxygen (O₂) to form only water (H₂O) and carbon dioxide (CO₂).
So, the incomplete and unbalanced equation is:
\(CH_4+O_2\to CO_2+H_2O\)c) The combustion occurs in high temperature and in gaseous form. Thus, all compounds are in gaseous form (g).
The unbalcend equation is then:
\(CH_4\, (g)+O_2\, (g)\to CO_2\, (g)+H_2O\, (g)\)d) To balance the equation, we can leave CH₄ unchanged and balance the others base on it.
The carbon, C, only appears in CH₄ and CO₂, and in both we have only 1, so it is balanced.
The hydrogen, H, appears in CH₄ and H₂O. We have 4 on the left side and 2 on the right side, so we can double H₂O to fix it:
\(CH_4\, (g)+O_2\, (g)\to CO_2\, (g)+2H_2O\, (g)\)Now, we have 2 oxygen, O, on the left side and 4 on the right side, so we also need to double O₂ to get it right.
So, the balanced equation is:
\(CH_4\, (g)+2O_2\, (g)\to CO_2\, (g)+2H_2O\, (g)\)If 25 grams of sugar dissolves into 150 grams of water, what is the new weight of the liquid?
Answers
Answer:
175 grams
Explanation:
25+150=175
175 grams
Describe the reactions during the electrolysis of water in an electrolytic cell. Group of answer choices Oxygen and hydrogen are both oxidized. Oxygen is oxidized and hydrogen is reduced. Oxygen is reduced and hydrogen is oxidized. Oxygen and hydrogen are both reduced. Neither oxygen or hydrogen are oxidized or reduced.
Answers
Answer:
Oxygen is oxidized and hydrogen is reduced.
Explanation:
Let's consider the redox reaction during the electrolysis of water in an electrolytic cell.
2 H₂O ⇒ 2 H₂ + O₂
The corresponding half-reactions are:
2 e⁻ + 2 H₂O ⇒ H₂ + 2 OH⁻
2 H₂O ⇒ O₂ + 4 H⁺ + 4 e⁻
Oxygen is oxidized since its oxidation number increases from -2 to 0.
Hydrogen is reduced since its oxidation number decreases from +1 to 0.
Consider the following reaction: 2N2O5(g) → 4NO2(g) + O2(g) Calculate the volume N2O5 that must decompose completely to produce 9.64 L nitrogen dioxide.
Answers
The volume of \(N_2O_5\) needed to produce 9.64 L of \(NO_2\) is 4.97 L, calculated using stoichiometry and the ideal gas equation.
The given chemical equation is \(2N_2O_5(g) \rightarrow 4NO_2(g) + O_2(g)\) .The volume of \(N_2O_5\) that decomposes completely to form 9.64 L of \(NO_2\) is to be calculated. For this, we can use the concept of stoichiometry. Stoichiometry is a branch of chemistry that deals with the quantitative relationships between reactants and products in a balanced chemical equation.To calculate the volume of \(N_2O_5\) that is needed to produce 9.64 L of \(NO_2\), we will first determine the number of moles of NO2 produced in the reaction. For this, we can use the ideal gas equation, PV = nRT. Here, we have the volume of NO2 and we can assume the pressure and temperature to be constant. Thus, we have PV = nRT, where P = pressure, V = volume, n = number of moles, R = ideal gas constant, and T = temperature. Substituting the given values in the ideal gas equation, we get,n = PV/RT = (1 atm × 9.64 L)/(0.0821 L atm K-1 mol-1 × 300 K) = 0.404 molFrom the chemical equation, we see that 2 moles of \(N_2O_5\) give 4 moles of \(NO_2\). Thus, 0.404 mol of \(NO_2\) must have been produced from (0.404/2) = 0.202 mol of \(N_2O_5\). Using the ideal gas equation, we can also find the volume of 0.202 mol of \(N_2O_5\) at the given conditions. Thus, V = nRT/P = (0.202 mol × 0.0821 L atm K-1 mol-1 × 300 K)/1 atm = 4.97 L. Thus, the volume of \(N_2O_5\) that must decompose completely to produce 9.64 L nitrogen dioxide is 4.97 L.For more questions on stoichiometry
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What is Scrooge’s “business” according to his interaction with the men? Why does he feel this way
Answers
Answer:
Ebenezer Scrooge's business is to take care of his own establishment and thus, refused to donate/ contribute any to the charity.
He feels this way because he thinks that it is not one's business to interfere in another's business.
Explanation:
Charles Dickens's play "A Christmas Carol," tells the story of the protagonist Ebenezer Scrooge and his 'hatred' of the Christmas festival. But it was during this time of the year that he got 'inspired' by the ghost of his late partner c um friend Marley, teaching him a life lesson that changed Scrooge for the better.
When the two gentlemen came to visit the workplace of Scrooge expecting some donation for charity, Scrooge refused to give a single penny. According to him, the suffering of the people and their need is none of his business. He exclaims "I don’t make merry myself at Christmas and I can’t afford to make idle people merry. I help to support the establishments I have mentioned—they cost enough; and those who are badly off must go there." Rather, his business is to take care of his company, which "occupies [him] constantly" and thus, it's not his business to "not to interfere with other people’s".
he felt this way because he thinks that it is "unfair" and unbecoming to get involved in someone's business.
A scientist studies the effect of adding different amounts of salt on the boiling point of water. He places his results in the
graph below.
What are the independent and dependent variables in this experiment?
Mass is the independent variable, and boiling point is the dependent variable
Bowling point is the independent variable, and mass is the dependent variable
There are two independent variables and no dependent variables
There are two dependent variables and no independent variables
Answers
Answer:
Mass is the independent variable, and boiling point is the dependent variable.
what is the photoelctric effect?
Answers
Explanation:
It is the emission of electron from a metal under the effect of light is known as photo electric effect
I hope this imformation help full for you
Which of the following molecules would you expect to have the highest boiling point?
1
O Molecule 3
O Molecule 1
O Molecule 4
O Molecule 2
2
3
OH
O
4
Answers
The highest boiling point based on the data is option 4
What is the highest boiling point?Compared to alcohols of comparable molecular weight, carboxylic acids often have higher boiling temperatures. Between the hydrogen atoms of adjacent molecules and the oxygen in the carboxyl group of carboxylic acids, strong intermolecular hydrogen bonds can develop. Because it takes more energy to break the intermolecular interactions and change the substance from a liquid to a gas during boiling, these hydrogen bonds help materials have higher boiling temperatures.
Although carboxylic acids and alcohols are both capable of forming hydrogen bonds, carboxylic acids have higher boiling temperatures due to the extra carboxyl group that they contain.
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I need help on this organic chemistry question:
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What are the number of rotational axes and the number of mirror planes for each of these images? (below)
1,1-dichlorocyclopropane
trans-1,2-dichlorocyclopropane
cis-1,2-dichlorocyclopropane
cis-1-bromo-2,3-dichlorocyclopropane (all cis)
1-bromo-1-chlorocyclopropane
trans-1-bromo-2-chlorocyclopropane
cis-1-bromo-2-chlorocyclopropane
Which of these are superimposable?
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Thank you!! :)
Answers
Explain and describe, using at least one example of each, the following types of structural isomerism:
i) chain
ii) position
iii)functional group
Answers
Explain and describe, using at least one example of each, the following types of structural isomerism:
i) chain
Which structural isomerisms are there, and what instances are there?Chain isomerism, position isomerism, and functional group isomerism are the three forms of structural isomerism that are now recognised. Chain Isomerism: When a molecule's carbon chains have different arrangements of the carbon atoms, this phenomenon is known as chain isomerism.
The two basic types of isomerism are stereoisomerism or spatial isomerism, in which the bonds between the atoms are the same but their relative locations vary, and structural or constitutional isomerism, in which the bonds between the atoms alter.
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2.72 Name the following ionic compounds: (a) KCN, (b) NaBrO2, (c) Sr(OH)2, (d) CoTe, (e) Fe2(CO3)3, (f) Cr(NO3)3, (g) (NH4)2SO3, (h) NaH2PO4, (i) KMnO4, (j) Ag2Cr2O7.
Answers
KCN is potassium cyanide, and NaBrO2 is sodium bromide, strontium hydroxide (SrOH), iron carbonate (Fe2CO3)3, and chromium nitrate (CrNO3)3.
Why is the compound NH4 2SO4 an ionic one?Ammonium NH4+ and sulfate SO42- are the two polyatomic ions that make up the ionic compound Ammonium Sulfate. To balance the sulfate ions, Ammonium Sulfate (NH4)2SO4 is produced by removing one electron from ammonium. Two NH4+ particles and one SO4 2-particle is found in every atom of ammonium sulfate.
What is the ionic compound of NaH2PO4 that follows?Monosodium phosphate, monosodium dihydrogen orthophosphate, and monosodium phosphate are the three types of sodium phosphate. Formula Linear: NaH2PO4.
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Explain the steps that were taken to get to the answer
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(0.72)(50)=(M2)(120)
M2=0.3 mol/L
2. Same formula where
(0.0075)(V1)=(50)(0.0025)
V1=16.67 KMN04
But dilution needs water so last volume,V2 - the exist KMNO4 solution. Therefore
50-16.67=33.33 ml water
3. Find moles of KMnO4 using formula molarity (Molarity=number of moles/litre of solution)
Therefore, (0.0075=x/0.5)
Number of moles KMnO4,x= 3.75x10^-3moles
Molecular mass of KMnO4 is 158g/mol.
Mass of KMnO4 needed is (3.75x10^-3)(158)
=0.5925g/590mg(few decimals places inaccurate due to the difference in significant figures)
Volume of water need to add to reach amount of volume needed which is 500ml
Estimate the molar concentration of 0.50 wt% (0.0050 mass fraction) benzene (C6H6) dissolved in liquid ethanol (C2H5OH) at 20°C. The density of liquid ethanol is 789 kg/m3 at 20°C. This solution of the solute benzene dissolved in the solvent ethanol is considered dilute.
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The molar concentration of benzene is 0.05mol/L
Data;
Mass Fraction = 0.0050Temperature = 20°CDensity of Ethanol = 789 kg/m^3 Molar Concentration of Benzenemolar mass of benzene = 78g/mol
molar mass of ethanol = 46g/mol
mole fraction of benzene is
\(mole fraction = \frac{moles of benzene}{total mole}\)
Let's substitute the values and find the mole fraction of benzene
\(_yC_6H_6 = \frac{\frac{0.005}{78} }{(\frac{0.005}{78})+ (\frac{1-0.005}{46}) }\\ _yC_6H_6 = 0.00295\)
The density of benzene given is 789 kg/m^3
Molar concentration of the solution is
\(M = \frac{789}{0.046} = 17.15Kmol/m^3\)
The concentration of benzene is the product of mole fraction and the molar concentration of the solution
\(M = 0.00295 * 17.152 = 0.05Kmol/m^3= 0.05mol/L\)
The molar concentration of benzene is 0.05mol/L
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Please help me please i will mark you brainliest. In the nucleus of an atom, there are 17 protons and 18 neutrons. What is the atomic number? What is the atomic mass? How many electrons are there? Be sure to answer all 3 questions.
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Answer:
i can only help with 2 :( atimic mass is: 35.453 and number of electrons is:17
Explanation:
A solution of ammonia and water contains 4.00×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Answers
According to the information provided, there are 8.601024 8.60 10 -24 ammonia molecules in a solution of water and ammonia (NH3 N H 3). The total number of hydrogen atoms inside the solution is 1.06 1026.
How are hydrogen atoms of water calculated?Water has the chemical formula H2O, which stands for two moles of hydrogen and one mole for oxygen. Consequently, there are two moles of hydrogen in a single water molecule. 18 g if water will have 1 x 12.046 1023 = 12.046 1023 hydrogen atoms.
How many water molecules are there, exactly?According to Avogadro's number, there's many 6.022 x 1023 water molecules in a mole of water. After determining that a drop of water has 0.002775 moles, we can now calculate how so many molecules are present in it: molecules inside a water drop Equal (6.022 x 1023 particles) x 0.002275 moles.
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