The density of a gas is 2. 49 g/l at 3. 00 atm and 25oc. Calculate the molar mass of the gas.

To complete the table with the binary molecular compounds, we need to provide their respective chemical formulas and names.

Starting with tetraphosphorus heptasulfide, the chemical formula is P4S7 and the name is tetraphosphorus heptasulfide. For phosphorus pentachloride, the chemical formula is PCl5 and the name is phosphorus pentachloride. Moving on to tetraphosphorus trisulfide, the chemical formula is P4S3 and the name is tetraphosphorus trisulfide. Lastly, for phosphorus trichloride, the chemical formula is PCl3 and the name is phosphorus trichloride.

It's important to note that binary molecular compounds are made up of nonmetallic elements, which is why they are named using prefixes to indicate the number of each element present. When writing the chemical formulas, we use the subscripts to represent the number of each element present in the compound.

In conclusion, the table below shows the binary molecular compounds with their respective chemical formulas and names.

| Compound Name | Chemical Formula |
|---------------|-----------------|
| Tetraphosphorus heptasulfide | P4S7 |
| Phosphorus pentachloride | PCl5 |
| Tetraphosphorus trisulfide | P4S3 |
| Phosphorus trichloride | PCl3 |

I hope this detailed answer gives you a clear understanding of the binary molecular compounds listed in the table.

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the nurse will administer approximately 1 teaspoon (tsp) of the medication.1 teaspoon (tsp) is approximately equal to 5 mL.

To determine the number of teaspoons the nurse should administer, we need to calculate the equivalent volume of 30 mEq of KCL using the provided concentration of 60 mEq/10 mL.

First, we'll find the ratio of milliequivalents (mEq) to milliliters (mL) in the given concentration:

60 mEq / 10 mL = 6 mEq/mL

Next, we can set up a proportion to find the volume (in mL) that corresponds to 30 mEq:

6 mEq/mL = 30 mEq / X mL

To solve for X, we can cross-multiply:

6X = 30 * 1

6X = 30

X = 30 / 6

X = 5 mL

Since the medication cup is marked in teaspoons, we need to convert 5 mL to teaspoons.

1 teaspoon (tsp) is approximately equal to 5 mL.

Therefore, the nurse will administer approximately 1 teaspoon (tsp) of the medication.

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Answer:

it may be +1 or -1 hope this help

An atom is a kind of stuff that cannot be further decomposed chemically. Therefore, the charge on a single proton is +1.

The building block of an element is an atom. An atom is a kind of stuff that cannot be further decomposed chemically. The three main components of an atom are protons, neutrons, plus electrons.

Some substances are either bigger or smaller than atoms. Instances of chemical species that aren't commonly regarded as atoms include protons, neutrons, and electrons, which are atom-related particles. Atoms make up molecules and compounds, however they are not actual atoms. Salt is an example of a molecule and a compound (NaCl). The charge on a single proton is +1.

Therefore, the charge on a single proton is +1.

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The decomposition of wastewater can lead to the following:

II. Eutrophication and algal blooms.

III. The development of dead zones.

A wastewater can be defined as a body of water that has been contaminated due to human use in homes, offices, schools, businesses etc.

Ideally, wastewater should be disposed in accordance with the local regulations and standards because they typically are unhygienic for human consumption or use. Thus, floor drain are used in the kitchen, bathroom and toilet to remove wastewater, so as to mitigate stagnation and to improve hygiene.

Generally, the decomposition of wastewater can lead to the following:

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Answer: So to figure out your energy balance you need to gather some important information.  That is, you eat more calories than your body uses. A kilojoule is a calorie) is a measure of energy in food. On average, people eat and drink around 8700 kilojoules a day.

Explanation: I hope that helped- Please mark me as brainliest!

Answer:

yes, bacteria is alive because it can basically generate energy and including molecules to keep itself alive. There are sone bacteria that can help to digest food, destroy disease-causing cells, also giving the body its needed vitamins.

Answer: Energy has the ability to cause motion and create change.

Answer: it should be c or b

Explanation:

The statement that best explains this observation is that some of the energy in coal is destroyed by the intense heat required to release its potential energy. The correct option is B.

Electricity is light energy that is produced when charged atoms move through a closed wire made up of a substance. The motion of the charged particle produces electricity.

Here, when coal is burned to produce electricity it is less than potential energy because in making energy some amount of energy is lost in the form of heat and is released. The amount of electrical energy generated from burning coal is less than the coal's potential energy.

Thus, the correct option is B. Some energy in coal is destroyed by the intense heat required to release its potential energy.

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The maximum mass of sodium chloride that could be produced by the chemical reaction is 1.17 grams.

To determine the maximum mass of sodium chloride that could be produced, we need to find the limiting reactant. The limiting reactant is the reactant that will be completely consumed and determines the maximum amount of product that can be formed.

First, we need to calculate the number of moles for each reactant:

Hydrochloric acid (HCl): 0.73 g

Sodium hydroxide (NaOH): 1.54 g

Using the molar masses:

Molar mass of HCl = 36.46 g/mol

Molar mass of NaOH = 40.00 g/mol

Number of moles of HCl = mass / molar mass = 0.73 g / 36.46 g/mol = 0.020 moles

Number of moles of NaOH = mass / molar mass = 1.54 g / 40.00 g/mol = 0.039 moles

The balanced equation for the reaction is:

2HCl + NaOH → 2NaCl + H2O

From the balanced equation, we can see that the mole ratio between HCl and NaCl is 2:2 or 1:1.

Since we have 0.020 moles of HCl, the maximum amount of NaCl that can be produced is also 0.020 moles.

To calculate the maximum mass of NaCl, we can use the formula:

Mass = moles × molar mass

Mass of NaCl = 0.020 moles × 58.44 g/mol (molar mass of NaCl)

Mass of NaCl = 1.17 g

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Answer:

electrical power. nnnnnnn

Explanation:

could you post the text? its inconvenient to go back and forth to the picture.

Answer:

a) C4H6+2H2=C4H10

b) 4Na+CF4=4NaF+C

c) 2Na+2NH3=2NaNH2+H2

d) 2H202=2H2O+O2

Explanation:

Try and make sure there is the same number of reactants as products

Answer:

Explanation:

The molecular formula is the true chemical formula of a covalent molecular compound, and a multiple of the empirical formula. We can use the molar mass, along with the molar empirical mass, determined from the empirical formula, to determine the molecular formula of the compound.

Using, the percentage composition of each element, we can say: In each 100g of the compound, there is 49.47g (C), 5.201g (H), 28.84g (N), and 16.47g (O).

Therefore, we can now find the number of moles of each element, in 100g of compound. number of moles (n) = mass present (m) ÷ molar mass (M). Molar mass can be found using a standard IUPAC Periodic Table.

n(C) = m/M = 49.47/12.01 = 4.1191 mol

n(H) = m/M = 5.201/1.008 = 5.1597 mol

n(N) = m/M = 28.84/14.01 = 2.0585 mol

n(O) = m/M = 16.47/16.00 = 1.0293 mol

Since the empirical formula is one in which the proportions of each element are expressed in the simplest mole ratio, therefore:

C : H : N : O = 4.1191 : 5.1597 : 2.0585 : 1.0293

Divide each ratio by 4.1191 =

1 : 1.00985 : 0.4997 : 0.249, which is approximately equal to:

1 : 1 : 0.5 : 0.25 = 2 : 2 : 1 : 0.5 = 4 : 4 : 2 : 1

Therefore, empirical formula = C₄H₄N₂O.

Using empirical formula, we can calculate molar empirical mass, which is found by summing the molar atomic weights.

molar empirical mass = 4(12.01)+4(1.008) + 2(14.01) + 16.00 = 96.092.

The molar empirical mass is double the molar mass, and therefore, molecular formula must be half the empirical formula.

Therefore, molecular formula = C₂H₂NO

According to Le Châtelier's principle, a decrease in concentration of a reactant will shift the equilibrium of a chemical system towards the side with more reactants, ultimately increasing the concentration of the reactants.

Le Châtelier's principle states that a system at equilibrium will respond to any stress or change in conditions by shifting the equilibrium to counteract the stress or change. When the concentration of a reactant in a chemical system is decreased, the system will shift towards the side with more reactants to restore equilibrium. This means that more reactants will be produced until equilibrium is re-established. Conversely, if the concentration of a product is decreased, the system will shift towards the side with more products to restore equilibrium, ultimately increasing the concentration of the products.

Le Châtelier's principle is important in many areas of chemistry, including industrial processes and environmental chemistry, where understanding how a system will respond to changes in conditions is essential for optimizing processes and minimizing waste. By understanding how changes in concentration, temperature, and pressure affect the equilibrium of a system, chemists can predict and control the behavior of chemical reactions, ultimately leading to new discoveries and innovations.

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Answer:

Just 1 i.e., Option B.

Because except for top of the molecule, all other sides are filled with a letter meaning there is one free space.

Answer:

B

Explanation:

H .  +  H .   ----->  H:H            {":" represents a covalent bond, that is, a shared pair of electrons}

A Lewis structure is a convention used to represent the covalent bonding in a molecule.   Dots or lines are used to represent

valence electrons (electrons available for bonding).  The Lewis structure for the hydrogen molecule is as follows.

     H:H  or  H-H

A bonding pair is an electron pair shared between two atoms.

A nonbonding pair (lone pair, unshared pair) is a pair of electrons that remains on one atom and is not shared.

Answer:

When one reactant is in excess, there will always be some left over. The other reactant becomes a limiting factor and controls how much of each product is produced. While using excess reactants can help to increase percentage yields, this is at the expense of atom economy.

Explanation:

Answer:

Molarity is defined as the number of moles of solute per liter of solution. In this problem, we are given the number of moles of sugar and the volume of the solution in milliliters. We first need to convert the volume to liters before we can calculate the molarity.

To convert milliliters to liters, we divide by 1000:

908.08 milliliters = 908.08/1000 = 0.90808 liters

Now we can use the formula for molarity:

Molarity = moles of solute / liters of solution

Plugging in the given values, we get:

Molarity = 0.55 moles / 0.90808 liters

Molarity = 0.606 M (rounded to three significant figures)

Therefore, the molarity of the student's sugar solution is 0.606 M.

Answer:

The molarity of the student's sugar solution is 0.60 M.

Explanation:

Isotopes are atoms of an element with the same number of protons but a different number of neutrons.

Isotopes are different atom types that share the same atomic number and place in the periodic table but have different quantities of neutrons in their nuclei, resulting in various nucleon numbers or atomic masses.

Stable and unstable isotopes are the two basic categories of isotopes. 254 stable isotopes are known. Scientists refer to all synthetic (lab-made) isotopes as radioisotopes since they are radioactive due to their instability.

Examples of isotopes include carbon 12, which has 6 neutrons, carbon 13, which has 7 neutrons, and carbon 14, which has 8 neutrons. Carbon 14 is the radioactive isotope while the rest are stable.

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ANSWER

The number of moles of Pb(SO4)2 is 1.5 moles

EXPLANATION

Given that;

The mass of Li2SO4 is 330g

Follow the steps below to find the moles of Pb(SO4)2

Step 1; Write the balanced equation of the reaction

Step 2; Find the number of moles of Li2SO4 using the below formula

Recall, that the molar mass of Li2SO4 is 109.94 g/mol

The number of moles of Li2SO4 is 3.00 moles

Step 3; Find the number of moles of Pb(SO4)2 using a stoichiometry ratio

In the above equation of the reaction, 1 mole Pb(SO4)2 reacts to give 2 moles LiSO4

Let the number of moles of Pb(SO4) be x

Therefore, the number of moles of Pb(SO4)2 is 1.5 moles

Answer: 12 if you mean Zirconium

hope it helps

Answer:

12

Explanation:

hope it helps

The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live.

Population is the total number of people living in a region (such as a nation or the planet), which is always changing due to births, immigration, and natural mortality.

There are two ways to boost the Clawcat population. The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live, namely by expanding the plantation of Clawncat, providing enough irrigation, giving full access to sunshine, and increasing the richness of the soil through proper and effective fertilization.

Therefore, in the above given ways we can increase the population of Clawncat.

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Answer:

rotation around its north-south axis. 

The number of revolutions made by an electron per second in the third orbit of a hydrogen atom is 1.39 × 10^16 revolutions/s.

The given parameters are,Velocity of electron, v = 2.18 × 10^6 m/s

Radius of the third orbit, r = 3^2 n^2 / 4πε_0 m e^2

where n = 3 is the principle quantum number, m is the mass of an electron, and ε0 is the vacuum permittivity.

Thus, for the third orbit,r = (3^2 × 9)/(4πε_0 × m × e^2) = 0.53 Å

(Given)Solving for m we get,m = 9.109×10^-31 kg

Putting all the values, we have,r = (9 × 10^4) / (ε0 × m × 2.307×10^-28) = 0.53 Å

Thus, ε0 is the vacuum permittivity, which is equal to 8.854 × 10^-12 C^2 N^-1 m^-2.

Thus, the number of revolutions made by an electron per second in the third orbit of a hydrogen atom is equal to the frequency of the electron's motion.

The frequency, f, is given by,f = v / 2πr

Here, v is the velocity of electron and r is the radius of the third orbit.

Thus,f = (2.18 × 10^6 m/s) / (2π × 0.53 × 10^-10 m)≈ 1.39 × 10^16 s^-1

Therefore, the number of revolutions made by an electron per second in the third orbit of a hydrogen atom is 1.39 × 10^16 revolutions/s.

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The ε_b such that only 10% of the Hemoglobin sites are occupied by Oxygen is - 0.55 eV.

The reaction decomposes more as T increases, therefore it is ENDOTHERMIC, meaning it requires energy to form CO and O₂.

Kp for each specie...Kp = CO^2 O2 / (CO2)^2

forT = 1500

Assume 1 atm for CO2, after % dissociation

P-CO2 left = 1*(1-0.048/100)= 0.99952

P-CO formed = 1-0.99952 = 0.00048

P-O2 = (1-0.99952)/2 = 0.00024

so..

Kp = CO^2 O2 / (CO2)^2

Kp = (0.00048^2)(0.00024) / (0.99952^2) = 5.53*10^-11

T = 2500

Assume 1 atm for CO2, after % dissociation

P-CO2 left = 1*(1-17.6/100)= 0.824

P-CO formed = 1-0.824= 0.176

P-O2 = (1-0.176)/2 = 0.088

so..

Kp = CO^2 O2 / (CO2)^2

Kp = (0.176^2)(0.088) / (0.824^2) =0.0040

T = 3000

Assume 1 atm for CO2, after % dissociation

P-CO2 left = 1*(1-54.8/100)= 0.452

P-CO formed = 1-0.452= 0.548

P-O2 = (1-0.452)/2 = 0.274

so..

Kp = CO^2 O2 / (CO2)^2

Kp = (0.548^2)(0.274) / (0.452^2) =0.4027

We want that the part of epsilon are occupied with

εₐ = 0.366 eVε_b = - 0.55 eV

Therefore, the ε_b such that only 10% of the Hemoglobin sites are occupied by Oxygen is - 0.55 eV.

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If the density of your unknown liquid is 0.65 g/ml, calculate the volume in liters that 3 ml of your unknown liquid would occupy when vaporized at the temperature of your boiling water.

The 3 ml liquid should be sufficient for a relatively low molecular weight liquid.

boiling point of water at 1 atm = 100 oC = 100 + 273 = 373 K

standard STP temperature = 273 K

STP volume = 22.4 L

Temperature = (373/273) = 1.37

density = 0.65 g/ml

Volume of 3 ml liquid when evaporated

= ((3 x 0.65)g/molar mass x 22.4 x 1.37

So knowing molar mass we can easily calculate the volume occupied by 3 x 0.65 g of liquid in vapor phase.

Temperature performs a vital function in-hospital treatment (both humans and animals), food, beverages, and agriculture. Our average fitness is regularly reliant upon the temperature in lots of methods as nicely.

The SI unit of temperature as consistent with the global system of devices is Kelvin.

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The ideal gas law is the generalized gas equation that depicts the state of the hypothetical gas condition. Moles of oxygen take in is 2.42 mol.

The ideal gas equation gives the equation about the product of the pressure and the volume to be equal to that of the product of moles, temperature and the gas constant of the gas.

The formula for the ideal gas equation is:

\(\rm PV = nRT\)

Where,

Substituting values in the equation:

\(\begin{aligned} 1000 \times 6 &= \rm n \times 8.31 \times 298\\\\\rm n &= \dfrac{1000 \times 6}{8.31 \times 298}\\\\& = 2.42\;\rm moles\end{aligned}\)

Therefore, 2.42 moles of oxygen is taken in during the respiration process.

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The glucose that is derived from citric acid cycle molecules must do so via gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the production of glucose from non-carbohydrate carbon substrates such as amino acids, lactate, and glycerol in the liver and kidneys.

Therefore, Gluconeogenesis is the process of generating glucose from non-carbohydrate carbon substrates in the liver and kidneys. Glucose produced by gluconeogenesis is used by the brain and red blood cells as an energy source. It's an important metabolic pathway that maintains blood glucose levels during fasting periods and is also essential for individuals on a low-carbohydrate or ketogenic diet.

Hence, glucose derived from citric acid cycle molecules must do so via gluconeogenesis.

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The techniques that helped these three anthropologists their work that helped them assist communities overcome debilitating health issues are:

An anthropologist is described as a person engaged in the practice of anthropology.

Anthropology is said to be the study of aspects of humans within past and present societies.

The work of anthropologists like Shirley lindenbaum, david simmons, and paul farmer serve as examples of applying anthropology to successfully address health-care problems around the world. These three anthropologists had techniques used in their work their work that helped them assist communities overcome debilitating health issues. Such techniques include:

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