During a chemical reaction, the______
is not fully consumed.
A)
ideal chemical
B)
excess reactant
C)
limiting reagent
D)
stoichiometric compound

Answer:

i don't know but you can get this app called Socratic it scan questions  and tell you the answer to it

Explanation:

(a) To get the pH of the media to 5.8, you would add NaOH solution. NaOH is used as a basic solution, and when it is added to a solution, it will increase the pH of the solution.

(b) The molecular weight of BA is 225.3. To prepare a 1M solution, you would have to weigh out 225.3 grams of BA.(c) To convert a 1M solution of BA to mg/mL, you can use the following equation: 1 mole = molecular weight in grams; 1000 millimoles = 1 mole. So, 1 M = 1000 mg/mL. Therefore, a 1M solution of BA is equivalent to 1000 mg/mL .(d) To convert a concentration of 1000 mg/mL .

Therefore, to calculate the weight required for a 5 mM solution, use the following formula :Mass of BA = molarity × volume × molecular weight= 5 × 0.001 × 225.3= 1.1265 grams(f) To convert a concentration of 5 mM to mg/mL, we use the following formula: Concentration (mg/mL) = (Concentration (mM) × Molecular weight) / 1000= (5 × 225.3) / 1000= 1.1265 mg/mL(g)

To convert a concentration of 1.1265 mg/mL to mg/L, we multiply by 1000, so 1.1265 mg/mL = 1126.5 mg/L.(h) Given that the stock solution of BA is 5 mM and the working solution is 0.2 mg/mL.

To know more about increase visit:

brainly.com/question/19383315

#SPJ11

The moles of magnesium chloride are formed when 1.204 g Mg(OH)2 is added to 55 mL of 0.70 M HCl are 0.02064 mol.

The number of moles of HCl in the solution can be calculated as shown below.

moles HCl = volume x concentration

moles HCl = 0.055 L x 0.70 mol/L

moles HCl = 0.0385 mol

The balanced chemical equation of Mg(OH)₂ that react with the HCl is shown below.

Mg(OH)₂ + 2 HCl → MgCl₂ + 2 H₂O

According to the above reaction, one mole of Mg(OH)₂ reacts with two moles of HCl to produce one mole of MgCl₂.

The moles of Mg(OH)₂can be calculated as shown below.

moles Mg(OH)₂ = mass Mg(OH)₂ / molar mass Mg(OH)₂

The molar mass of Mg(OH)2 is 58.32 g/mol.

moles Mg(OH)₂ = 1.204 g / 58.32 g/mol

moles Mg(OH)₂ = 0.02064 mol Mg(OH)₂

Since two moles of HCl react with one mole of Mg(OH)₂, the number of moles of HCl that react is twice that of Mg(OH)2, or:

moles HCl = 2 x moles Mg(OH)₂

moles HCl = 2 x 0.02064 mol Mg(OH)₂

moles HCl = 0.04128 mol HCl

Since the reaction is complete when all of the HCl has reacted with the Mg(OH)₂, the limiting reactant is Mg(OH)₂. Therefore, all of the moles of HCl will react with 0.02064 moles of Mg(OH)₂ to form MgCl₂. The number of moles of MgCl₂ formed is also 0.02064 mol.

Therefore, the number of moles of magnesium chloride is 0.02064 mol.

Learn more about stoichiometry:

https://brainly.com/question/30215297

#SPJ4

Number of moles of Cl2 molecules in a sample that contains 7. 12×1025 molecules of Cl2 is 118.2 moles.

To find out the number of moles of Cl2 molecules in a sample that contains 7.12 x 1025 molecules of Cl2, we can use the following formula:

moles = number of molecules / Avogadro's number

A mole is a unit of measurement that is used to calculate the quantity of a material. One mole of a material is the amount of that substance that has the same number of particles (atoms, molecules, or ions) as 12 grams of carbon-12. This particle number is known as Avogadro's number, and it is around 6.022 x 10^23 particles per mole.

Therefore, the calculation is:

moles = 7.12 x 10^25 / 6.022 x 10^23

moles = 118.2 moles

So, the number of moles of Cl2 molecules in the given sample is 118.2 moles.

For more such questions on moles, click on:

https://brainly.com/question/14357742

#SPJ11

Yes, a medium can be centrosymmetric and also have a non-centrosymmetry due to second-order nonlinearities associated with the medium.

In photonics, the concept of centrosymmetry refers to the symmetry of a material with respect to its center point. A centrosymmetric medium possesses an inversion symmetry, meaning that it looks the same when its coordinates are inverted. However, even in a centrosymmetric medium, it is possible to have non-centrosymmetric effects through second-order nonlinearities.

Nonlinear optics deals with the interaction of light with materials where the optical properties of the medium change as a function of light intensity. Second-order nonlinearities arise when the response of the material is not linearly proportional to the incident light. These nonlinear effects can introduce non-centrosymmetric behavior in an otherwise centrosymmetric medium.

Second-order nonlinearities can manifest as phenomena such as second-harmonic generation (SHG) or sum-frequency generation (SFG), where the frequency of the generated light is different from the incident light. These effects require a non-centrosymmetric arrangement of the atoms or molecules within the material. Even though the overall medium may have a centrosymmetric crystal structure, the presence of these non-centrosymmetric arrangements can enable second-order nonlinear effects.

Therefore, while a medium can possess centrosymmetry, the existence of second-order nonlinearities can introduce non-centrosymmetric behavior and enable optical processes that are not restricted by the centrosymmetric nature of the medium.

Learn more about: Second-order nonlinearities

brainly.com/question/31476326

#SPJ11

Answer:  microbe Rickettsia prowazekii

Explanation:

Answer:

i think its  Hydrogen gas and oxygen gas react explosively to form water. and . Methane burns in air that contains oxygen.

Explanation: Mine was a little bit different than yours please forgive me if I'm wrong I chose answers that was similar to mine

Methane burns in air that contains oxygen and Hydrogen gas and oxygen gas react explosively to form water. These  two reactions are faster than the others.

Chemically speaking, methane has the formula CH4. The simplest alkane and the primary component of natural gas, it is a group-14 hydride. The amount of oxygen breathed from the air might be decreased by high methane levels. This may include headaches, facial flushes, slurred speech.

Unscented, colorless, and combustible, methane is a gas. It is mostly used as fuel to produce heat and light. It is also employed in the production of organic compounds. Methane is frequently found in landfills, marshes, septic tanks, sewers, and other places where natural materials decompose.

Suffocation can result from high methane concentrations in enclosed spaces because methane reduces the amount of oxygen in the air. Lack of oxygen can cause headaches, nausea, lightheadedness, and unconsciousness.

Thus, option A and D are correct.

To learn more about methane, follow the link;

https://brainly.com/question/2127750

#SPJ5

Answer:

naclo4+koh naoh+kclo4

Explanation:

if you know your cemestry

Answer:

it's A

Explanation:

Answer:

4.08 L

Explanation:

At standard temperature and pressure, a mole of any gas equals 22.4 L.

We have 0.182 mol of CO₂ gas. We know that every mole of gas is 22.4 L, so

\(0.182mol*\frac{22.4L}{1mol} =4.08L\)

⇒ 4.08 L of CO₂ is the answer

SI Unit: Volume = 4.133 L of carbon dioxide

Non-SI Unit: Volume = 4.079 L carbon dioxide

At STP conditions (Standard Temperature and Pressure), which is conditions at 100 kPa and at 0°C or 273.15 K, it is a given that the volume of  1 mole of ideal gas is 22.71 L.

\(\large \textsf{$\therefore$ if 1 mol of CO$_2$ = 22.71 L}\\\\\large \textsf{hence, 0.182 $\times$ 1 mol of CO$_2$ = 22.71 $\times$ 0.182}\\\\\large \textsf{$\implies$ \boxed{\boxed{$volume = 4.133 L of CO$_2}}}\)

Note: The value used for pressure above, 100 kPa (kilopascals), is a standard SI unit (International System of Units), used by most countries around the world.

However, another commonly used value for pressure (though not the preferred SI unit), is 1 atm (atmospheric pressure), which is equivalent to 101.325 kPa.

Using this value, the volume of 1 mole of ideal gas at STP is then 22.41 L. Solving this:

\(\large \textsf{if 1 mol of CO$_2$ = 22.41 L}\\\\\large \textsf{$\therefore$ 0.182 $\times$ 1 mol of CO$_2$ = 22.41 $\times$ 0.182}\\\\\large \textsf{$\implies$ \boxed{\boxed{$volume = 4.079 L CO$_2}}}\)

To learn more about Standard Temperature and Pressure Conditions:

https://brainly.com/question/2783971

Answer:

degree Celsius

Answer:

Determine the volume of the sample of CO2(g) if the temperature and pressure are changed to 336K and 152.0 kPa. Answer-->151 mL (PV/T=PV/T ) 60.

The combined gas law gives the value of the volume. The final volume at 336 K is 151.3 mL.

Charle's, Boyle's, and Gay-Lussac's laws together give the combined gas law. It is given as:

PV / T = k

Given,

Initial volume = 200 mL

Initial pressure = 101.3 kPa

Initial temperature = 296 K

Final pressure = 152 kPa

Final temperature = 336 K

The final volume is calculated as:

(P₁V₁) ÷ T₁ = (P₂V₂) ÷T₂

(101.3 × 200) ÷ 296 = (336 × V) ÷ 152

V = 151.3 mL

Therefore, 151.3 mL is the final volume at 300 K.

Learn more about combined gas law here:

https://brainly.com/question/15398848

#SPJ2

Answer: The kinetic energy of solids is limited to vibrational energies..the particles are tightly bound in their crystalline structure and can only bend, flex, and vibrate about relatively fixed position.  When vibrational energies exceed the strength of the force holding the particles together, the crystal structure collapses and we say the material melted.  The particles can now have, in addition to its vibrational energies, rotational energy.  Chunks of the collapsed crystal can, like a ball floating in water, rotate without showing much translational energy. Generally, we associate solids with vibrational kinetic energy, liquids with rotational kinetic energy, and gases with translational kinetic energy. Actually though, liquids have both vibrational and rotational energies, and gases have all three.

Answer:To Learn More Alcohols are heated at high temperatures in the presence of a potent acid, such as sulfuric or phosphoric acid, to initiate the dehydration reaction that results in alkene.

With more substitution of the hydroxy-containing carbon, the necessary range of reaction temperature is reduced:

Alcohols at 1°: 170°–180°C

2 degree alcohols: 100 to 140 °C

Alcohols can function as an acid or a base since they are amphoteric. The oxygen atom's single pair of electrons renders the -OH group mildly basic. Alcohol that has been protonated can go as low as -3.8 and oxygen can give two electrons. Alcohol's fundamental quality is necessary for its dehydration reaction with an acid to produce alkenes.

Explanation: Alcohols can function as an acid or a base since they are amphoteric. The oxygen atom's single pair of electrons renders the -OH group mildly basic. Alcohol that has been protonated can go as low as -3.8 and oxygen can give two electrons. Alcohol's fundamental quality is necessary for its dehydration reaction with an acid to produce alkenes. About

#SPJ4

In addition to the alkene, water is the other product that gets released with alkene when dehydration of alcohol takes place.

Inside the dehydration of an alcohol, the hydroxyl organization and a hydrogen atom from an adjacent carbon are removed to make water and an alkene. If alcohol has multiple carbon atoms next to the functional group, it could generally shape a couple of dehydration products.

The overall idea at the back of every dehydration reaction is that the –OH group within the alcohol donates electrons to H+ from the acid reagent, forming an alkyloxonium ion. This ion acts as a superb leaving institution that leaves to shape a carbocation.

The dehydration response of alcohols to generate alkene proceeds with the aid of heating the alcohols within the presence of a strong acid, such as sulfuric or phosphoric acid, at high temperatures.

Learn more about dehydration here:-https://brainly.com/question/1301665

#SPJ4

The correct answer is A. "N₂" represents two nitrogen atoms that have formed a molecule.

N₂ refers to a diatomic molecule composed of two nitrogen atoms bonded together by a strong triple covalent bond. Nitrogen (N) is an element with an atomic number of 7, meaning it has seven protons in its nucleus.
Each nitrogen atom has five valence electrons in its outermost electron shell. To achieve a stable electron configuration, two nitrogen atoms can share three pairs of electrons, resulting in the formation of the N₂ molecule.
Option B is incorrect because compounds are formed when different elements combine chemically, whereas N₂ consists of only one element, nitrogen. Option C is incorrect because the atomic number of nitrogen is 7, not 2. Option D is incorrect because the atomic mass of nitrogen is approximately 14 atomic mass units (AMU), not 2.
Therefore, N₂ represents two nitrogen atoms that have bonded together to form a molecule, which is the most accurate description among the given options.

Learn more about atomic mass units here:

https://brainly.com/question/32369855

#SPJ11

The time required to complete the reaction by 75% is approximately 51.3 minutes.

The half-life of a first-order reaction is a constant value that is independent of the initial concentration of the reactant. It is given by the equation:

t1/2 = ln(2) / k

where t1/2 is the half-life, ln(2) is the natural logarithm of 2 (approximately 0.693), and k is the rate constant for the reaction.

We can use the given information to determine the rate constant k:

t1/2 = 30 minutes

ln(2) / k = 30 minutes

k = ln(2) / 30 minutes ≈ 0.0231 min^-1

Now we can use the rate constant to determine the time required to complete the reaction by 75%:

ln(Ct / Co) = -kt

where Ct / Co is the fraction of reactant remaining at time t, Ct is the concentration at time t, Co is the initial concentration, and k is the rate constant.

For 50% completion, Ct / Co = 0.5:

ln(0.5) = -0.0231 min^-1 * t

t ≈ 30.1 minutes

For 75% completion, Ct / Co = 0.25:

ln(0.25) = -0.0231 min^-1 * t

t ≈ 51.3 minutes

Therefore, the time required to complete the reaction by 75% is approximately 51.3 minutes.

To know more about first order reaction refer here:

https://brainly.com/question/31661139?#

#SPJ11

Answer:

Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.

The net entropy change of the gas and its environment during the cycle is zero, as it is a closed cycle.

The net entropy change of the gas and its current circumstance during the cycle displayed in the p-V outline can't be resolved exclusively from the data given. Nonetheless, since process b-c is isothermal, the entropy change of the gas during that interaction is given by Q/T, where Q is the intensity consumed by the gas and T is the outright temperature at which the cycle happens. Since the interaction is isothermal, T is steady, so the entropy change of the gas during b-c is relative to Q. Assuming Q is positive, the entropy change of the gas is positive, implying that the gas ends up being more scattered during that cycle.

To learn more about entropy change, refer:

https://brainly.com/question/13016205

#SPJ4

The complete question is:

An ideal gas is taken around the cycle shown in this p-V diagram, from a to btoc Pb and back to a. Process b c is isothermal. What can you conclude about the net entropy change of the gas and its environment during the cycle? a) It is zero. b) It is positive c) It is negative. d) Two of A, B, and C are possible. e) All three of A, B, and C are possible 0 Two point charges and a point P lie at the vertices of an equilateral triangle as shown. Both point charges have the same magnitude q but opposite signs. There is nothing at point P. The net electric field that charges #1 and #2 produce at point P is in a) the ty-direction b) the-y direction c) the +x-direction. d) the-x-direction. ) none of the above. ) Charge #1 -q +q Charge #2 Constants R 8.314 mol K Isochoric Isobaric sothermal Adiabatic Constant Constant Constant No heat volume pressure temperature transfer Cice = 2.00e3 kg c steam2.00e3 kg c for water = 33.Se4 し,for water = 226e5 Na = 6,022e23- (efficiency) (carnot efficiency) On QH molecules .nole (adiabats only) (adiabats only) Nm pyr = constant TV"-1 = constant W71İ(pik-P2V2) (adiabats only) Any other needed constants should be given in the problems Heat and Temperature TKelvin = TCelcius + 273.15 EtotalB Misc Density 1 Dimension Thermal properties of matter Uniform (p+ (V-nb) = nRT NonUniform dm dL For Ideal Gas dm dA Ker = nRT (for degrees of freedom f) dv Valatonn.-5, Ynonatomic = 3 nonconservative forces-ΔΕ AL-Texternalt

Natural gas contains small amounts of sulfur compounds, such as hydrogen sulfide (H2S), which are undesirable impurities. When natural gas is burned, these sulfur compounds are oxidized, producing sulfur dioxide (SO2) as a pollutant. Sulfur dioxide then further reacts with oxygen in the atmosphere to form another harmful substance, sulfur trioxide (SO3).

The chemical equations representing this process are as follows:

1. Combustion of hydrogen sulfide (H2S):
  H2S + 3/2 O2 → SO2 + H2O

2. Oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3):
  2 SO2 + O2 → 2 SO3

These reactions contribute to air pollution, and the formation of sulfur trioxide in the atmosphere can lead to the formation of acid rain when it reacts with water vapor. Therefore, it is essential to minimize the release of sulfur compounds during the combustion of natural gas and other fossil fuels to mitigate the negative environmental impacts.

To learn more about acid rain : brainly.com/question/11543614

#SPJ11

C) HF (l)When a substance is added to a solution, it can potentially affect the hydronium-ion concentration. To determine which substance would not increase the hydronium-ion concentration, we need to identify the compounds that do not dissociate to release additional hydronium ions.

A) Na2CO3 (s): When Na2CO3 dissolves in water, it dissociates into Na+ and CO3^2- ions. The CO3^2- ions can react with water to form HCO3- and OH- ions, increasing the hydronium-ion concentration. B) HCl (g): HCl is a strong acid that dissociates completely in water, releasing H+ ions, which increase the hydronium-ion concentration. C) HF (l): HF is a weak acid that does not fully dissociate in water.  D) H2C2O4 (s): H2C2O4, also known as oxalic acid, is a weak acid. It would partially dissociate in water, increasing the hydronium-ion concentration. E) NaHSO4 (s): NaHSO4, also known as sodium bisulfate, is a salt that dissociates in water, releasing HSO4- ions, which can react with water to form additional H3O+ ions. HC2H3O2 solution because it is a weak acid.

Among the given substances, the one that would not increase the hydronium-ion concentration when added to the HC2H3O2 solution is C) HF (l).Therefore, adding HF to the solution would not significantly increase the hydronium-ion concentration.

To know more about hydronium visit:

https://brainly.com/question/31947098

#SPJ11

When water moves in a certain direction because of uneven heating the phenomenon is called Convection. Fluids are substances that can flow. One example which can be subject to Convection is Air.

When air is heated, it rises above dry and or cool air which is heavier. So the cool air is displaced most likely moves towards the source of the heat.

If the process of heating continues or is constant, this will create a movement between both kinds of air hence - convection occurs.

See the link below for more about convection in fluids:

https://brainly.com/question/9033636

Answer:

C. Ionic-Li and S are two nonmetals

Ionic bonds are a type of bond formed with the attraction between oppositely charged ions to form a chemical compound, this type of bond will have a transfer of electrons, from the positively charged ion (cation) to the negatively charged ion (anion). Since this type of bonding heavily depend on the electronegativity of the elements, we will have compounds formed with metals, located more to the left in the periodic table, mostly group 1 and 2, and with nonmetals, more to the right in the periodic table, one example of this type of bond is Chlorine (nonmetal anion) and Lithium (metal cation).

Covalent bonds are a type of bond formed with the sharing of electrons between two elements with no big difference in their electronegativity, usually, we will see nonmetals in this type of bond, since their difference in electronegativity is not as relevant as the difference between metals and nonmetals, one example of this type of chemical bond is Nitrogen and Oxygen, 2 nonmetals that can bond together.

Metallic bond, as the name suggest, is a type of bond that will strictly involve metals and not nonmetals, this type of bond has many properties but the low electronegativity in general is one of these properties, one example for this bond is Gold and Gold

Therefore the answers are:

Gold and Gold = metallic

Nitrogen and Oxygen = covalent

Chlorine and Lithium = ionic

This mistake would lead to inaccurate results because the unknown acid wasn't completely transferred into the flask. As a result, the recorded results won’t reflect the true acid concentration of the unknown acid.

In order to obtain accurate results, all of the unknown acid must be completely transferred into the flask before titrating with a NaOH solution that was correctly standardized.

When this step is not taken, the amount of acid titrated will not be an accurate representation of the unknown acid's concentration. This leads to a lower than expected titration result, which in turn leads to inaccurate results.

It is important to remember to transfer all of the unknown acid into the flask before titrating with a standardized NaOH solution. Doing so ensures that the titration results will accurately reflect the concentration of the unknown acid.

To know more about titration click on below link:

https://brainly.com/question/2728613#

#SPJ11

If a precipitate forms when BaCl₂ solution is added to a solution of your unknown, this indicates the presence of the sulfate anion sulphate anion, SO₄²⁻, is indicated to be present in the unknown. Therefore, the right choice for answer is option (c).

We know that the precipitate is an insoluble solid. It comes from a liquid solution. When an insoluble solid separates from a liquid solution, it is called precipitation. When the BaCl₂ solution is added to the solution, we get a precipitate. Barium chloride is added to E (unknown) in this issue. It is said that when BaCl₂ ( a soluble salt) reacts with E, an insoluble white precipitate forms. Therefore, E must also be soluble to produce an insoluble solid precipitate. As indicated above, the product formed will be the barium salt and will be insoluble in barium sulphate. Therefore, the product is probably barium sulphate, which is insoluble in dilute hydrochloric acid,

Ba²⁺ + SO₄²⁺ → BaSO₄, where barium sulfate is a thick white precipitate.

Therefore, E should be any soluble sulphate. It can be sodium sulphate or potassium sulphate. An example of a precipitation reaction is written as

BaCl₂(aq) + Na₂SO₄(aq) → BaSO₄(s)+NaCl.

For more information about precipitate, visit :

https://brainly.com/question/30386923

#SPJ4

Answer: Volume = 2g

Explanation: In order to calculate the density of an object you divide the mass by the volume (d=m/v). In this case, you have invert the equation to solve for the volume (v=m/d). The mass of 5g/the density of 2.5g = 2g

Hope this helps:)

Answer: F

Explanation:

Answer: 3

Explanation: