# Question: How do I convert moles to mass and volume to moles?

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## How do you convert moles to mass?

Multiply the molecular weight by the number of moles for the substance. The molecular weight is the number of grams per mole for the substance and gives the conversion factor for moles to grams for that particular substance. So, one mole of water has a mass of 18.02 grams (1 mol H2O x 18.02 g/mol = 18.02 g).

## Can you convert volume to moles?

Converting from volume (liters) to moles: Divide your initial volume by the molar volume constant, 22.4 L. … Converting from particles (atoms, molecules, or formula units) to moles: Divide your particle value by Avogadro’s number, 6.02×1023. Remember to use parentheses on your calculator!

## How do you find volume when given moles?

Molarity can be used to calculate the volume of solvent or the amount of solute. The relationship between two solutions with the same amount of moles of solute can be represented by the formula c1V1 = c2V2, where c is concentration and V is volume.

## How do moles relate to mass and volume?

Lesson Summary. The molar mass of a substance is used to convert grams to moles and moles to grams. … The volume of 1 mole of any gas is called its molar volume and is equal to 22.4 L at standard temperature and pressure. Molar volume allows conversions to be made between moles and volume of gases at STP.

## How do you calculate moles to grams?

In order to convert the moles of a substance to grams, you will need to multiply the mole value of the substance by its molar mass.

## What is the relationship between moles and mass?

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

## What is the N in PV nRT?

The ideal gas law can also be written and solved in terms of the number of moles of gas: PV = nRT, where n is number of moles and R is the universal gas constant, R = 8.31 J/mol ⋅ K. The ideal gas law is generally valid at temperatures well above the boiling temperature.

## What volume will one mole of co2 occupy at STP?

Molar Volume:

The molar volume of a gas is the volume that one mole of gas occupies at a set temperature and volume. At Standard Temperature and Pressure (STP = 1 atm and 273 K), an ideal gas will occupy 22.4 L.

## How do I calculate moles?

The unit is denoted by mol.

1. The formula for the number of moles formula is expressed as.
2. Given.
3. Number of moles formula is.
4. Number of moles = Mass of substance / Mass of one mole.
5. Number of moles = 95 / 86.94.
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## How do you find the number of moles given volume pressure and temperature?

Multiply the volume and pressure and divide the product by the temperature and the molar gas constant to calculate moles of the hydrogen gas. In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles.

## What is the difference between molar mass and moles?

A mole is 6.02⋅1023 (avogadro’s number) molecules of a substance. The molar mass is the amount of mass that 1 mole of that substance possesses.

## How do you convert volume to mass?

Density = mass/volume (ρ=m/V). So V=m/ρ and has units (kilograms)/(kilograms per cubic meter)=cubic meter. Before you can go any further with your calculation, you need to find out the density of the substance that you are trying to convert.

## What is the relationship between a mole and Avogadro’s number?

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant. The concept of the mole can be used to convert between mass and number of particles.. Created by Sal Khan.