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## How do you find the mass when given moles?

If mass is given in kilograms (kg), multiply it by 1,000 to give a mass in **grams** (g). Substitute in the values and solve the equation to find moles of substances (mol).

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Calculating the Moles of a Pure Substance (n=m/M)

we know the mass with units of | grams (g) |
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we know the molar mass with units of | grams per mole (g mol^{–}^{1}) |

## How do you find mass from volume?

**Volume equals mass divided by density**; and. Mass equals density times volume.

## How do you calculate mass in chemistry?

MASS OF A SUBSTANCE **= VOLUME X DENSITY**.

## How do you find mass when given concentration and volume?

**Rearranging the equation for concentration allows the mass of solute to be calculated:**

- mass of solute in g = concentration in g/dm
^{3}× volume in dm^{3} - A solution of sodium chloride has a concentration of 10 g/dm
^{3}. … - mass of solute in g = concentration in g/dm
^{3}× volume in dm^{3} - = 10 g/dm
^{3}× 2 dm^{3}

## What does n m/m mean?

n = m/M n is the **amount of substance**, in moles, mol. m is the mass of the substance, in grams, g. M is the molar mass of the substance (the mass of one mole of the substance) in g mol-1. Molar masses: These. will be given in.

## How do you calculate relative formula mass?

Relative atomic masses can be used to find the relative formula mass of a compound. To find the relative formula mass (M _{r}) of a compound, **you add together the relative atomic mass values (A _{r} values) for all the atoms in its formula**.