Mole Conversions

Front

What is the molar mass of AuCl3?

Back

303.3 g

Front

What is the molar mass of one molecule of Nitrogen N2?

Back

28.02 g

Front

Find the percent composition of hydrogen in (NH4)2S.

Back

11.8%

Front

Which conversion factor should be used for the question 'How many molecules are there in 4.00 moles of glucose, C6H12O6'?

Back

1 mol = 6.02x 10^23 particles

Front

How many grams are in 2.4 moles of Sulfur?

Back

76.8 g

Front

Define molar mass.

Back

The mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

What is Avogadro's number?

Back

6.02 x 10^23, the number of particles in one mole of a substance.

Front

How do you calculate the percent composition of an element in a compound?

Back

(mass of element in 1 mole of compound / molar mass of compound) x 100%.

Front

What is the relationship between moles and molecules?

Back

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

Front

How do you convert moles to grams?

Back

Multiply the number of moles by the molar mass of the substance.