Mole and Molar Mass

Front

What is Avogadro's number?

Back

6.02 x 10^23 particles per one mole of a substance.

Front

What is the definition of molar mass?

Back

Number of grams per one mole of a substance.

Front

Calculate the mass in grams of 5.90 mol C8H18.

Back

673 g.

Front

How many molecules are there in 5.5 moles of potassium chloride?

Back

3.31 x 10^24.

Front

What is the number of atoms in K3PO3?

Back

K: 3, P: 1, O: 3.

Front

What is the formula to calculate the number of moles?

Back

Number of moles = mass (g) / molar mass (g/mol).

Front

How do you convert moles to grams?

Back

Multiply the number of moles by the molar mass.

Front

What is the relationship between moles and molecules?

Back

1 mole contains Avogadro's number of molecules (6.02 x 10^23).

Front

What is the molar mass of water (H2O)?

Back

18.02 g/mol.

Front

How many moles are in 36 grams of water?

Back

2 moles.