Mole and molar mass

Front

What is the mass in grams of 5.90 mol C8H18?

Back

673 g

Front

What is the definition for Avogadro's number?

Back

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

Front

Which represents the greatest mass of sulfur?

Back

6.02 x 10^23 atoms of sulfur

Front

What is the molar mass of AuCl3?

Back

303.3 g

Front

What is the mass of 2.50 mol of oxygen gas O2?

Back

80 g

Front

Define molar mass.

Back

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

Front

How do you calculate the number of moles from mass?

Back

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

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

What is the molar mass of water (H2O)?

Back

18 g/mol.

Front

How many grams are in 3 moles of carbon dioxide (CO2)?

Back

132 g (3 moles x 44 g/mol).