**Contents**show

## How many moles are in 5.0 grams Cao?

Thus, there are **0.125 mole** in 5 grams of calcium. Thus, 5 grams calcium constitute 0.125 mole of calcium. In the above case, mass of element is 5 grams and molar mass of element is 40g/mol.

## How do you calculate G to moles?

**Divide the mass of the substance in grams by its molecular weight**. This will give you the number of moles of that substance that are in the specified mass. For 12 g of water, (25 g)/(18.015 g/mol) = 0.666 moles.

## How many grams are in CaBr2?

The atomic mass of CaBr2 is 199.89 g/ mole. Use dimensional analysis to determine the amount of grams: 0.9 moles CaBr2 x 199.89 g/ mole = **180 g**.

## How many moles are 5 grams of calcium atomic mass of calcium 40u?

Grade 10. Molar mass of Calcium=40.078 g/mol. So numbers of moles =5.00/40.078=**0.125 mol**.

## How many grams are in 1 mole of calcium?

39.10 grams is the molar mass of one mole of K. Grams can be canceled, leaving the moles of K. How many grams is in 10.00 moles of calcium (Ca)?

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Applications of the Mole.

Known Information | Multiply By | Result |
---|---|---|

Mass of substance (g) | 1/Molar mass (mol/g) × Avogadro’s constant (atoms/mol)) | Atoms (or molecules) |

## What is 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**.

## How many moles are in iron oxide?

Explanation: Ferric oxide , Fe2O3 , has a molar mass of 159.69⋅g⋅mol−1 . Moles of ferric oxide=**0.067⋅g**159.69⋅g⋅mol−1=4.20×10−4mol .

## How many grams are in Fe?

This information comes from the molar mass of Fe, which **55.85 grams per mole**.