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## How many moles are in cacl2?

Since calcium chloride is a solid, it would be convenient to use a balance to measure the mass that is needed. The molar mass of CaCl_{2} is 110.98 g/mol. The conversion factor that can be used is then based on the equality that **1 mol** = 110.98 g CaCl_{2}.

## How do you find the moles of an element?

Avogadro’s number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, **multiply the molar amount by Avogadro’s number**. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## How many moles are in calcium phosphate?

Similarly, the formula mass of calcium phosphate [Ca_{3}(PO_{4})_{2}] is 310.177 amu, so its molar mass is 310.177 g/mol. This is the mass of calcium phosphate that contains **6.022** × 10^{23} formula units.

## How many atoms are in 4 moles of aluminum?

Therefore, **[2.41times 10{}**^text{2}] atoms/mol of Aluminum are present in $4$ mol of Aluminum.

## How many moles are 5 grams 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) |

## Why is a mole 6.022 x10 23?

The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×10^{23}**elementary entities of the substance**.

## How much atoms are in a mole?

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = **6.022 × 1023 atoms** • The number of particles in 1 mole is called Avogadro’s Number (6.0221421 x 1023).

## How many moles are in 28 grams of co2?

Complete answer:

The molecular weight of a material is required to tell an individual how many grams there are in one mole of that chemical substance i.e. molecular weight of any substance contains 1 mole of that substance. Then 28 g of $C{{O}_{2}}$ contains = **0.636 moles** of $C{{O}_{2}}$.