## How do you convert mass to number of moles?

A substance’s molar mass is calculated by multiplying its relative atomic mass by the molar mass constant (1 g/mol). The molar mass constant can be used to convert mass to moles. By multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.

### How many moles are equal to?

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.

**What is the mass of 5 moles of Fe2O3?**

159.0 1798.45g

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**What is the mass of 5 moles of?**

To find the mass of one molecule of SO2 we have to add the mass of one atom of sulphur and two atoms of oxygen. The mass of 1 mole of any substance is equal to that substance’s molecular weight. Thus we can say that each mole of SO2 weighs 64 grams. Therefore the mass of 5 moles of SO2 is 320 grams.

## What is the mass is grams of 5 moles of Fe?

the atomic masses of the Periodic Table can therefore show the molar mass of an element, in grams per mole of atoms. the atomic mass of iron Fe is 56 . the formula mass (molar mass of a compound) of Fe3 is 3⋅56 , which is 168 . the atomic mass of phosphorus P is 31 .

### How many grams are in 10 moles of oxygen?

mass = 320 grams….

**How many grams are in 4 moles of oxygen?**

Since 1 mole of oxygen is equivalent to 32 g, 4 moles of oxygen gas would be equivalent to 4 moles x 32 g/mole = 128 g. Thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.

**How do you convert from moles to mass?**

Converting from moles to mass (grams): Multiply your initial mole value by the molar mass of the compound as determined by the periodic table. Converting from volume (liters) to moles: Divide your initial volume by the molar volume constant, 22.4 L.

## How do you calculate the mass of a mole?

Answer Wiki. In order to calculate the mass of one mole of a molecule, we must simply find the atomic weight of each atom in that molecule, multiply each by the number of times it appears, and add them all together.

### What is the formula for calculating mole?

To know how to calculate moles, the equation is: mole = mass / molecular weight If you wanted to find the concentration of the hydrochloric acid, you could use our concentration calculator .

**How do you calculate molecules?**

Calculating the Number of Molecules. Once you know the molecular weight of a compound, you know how much Avogadro ‘s number of that compound weighs in grams. To find the number of molecules in a sample, divide the weight of the sample by the weight of one mole to get the number of moles, then multiply by Avogadro’s number.