Grams and Moles Conversions Test Review IPC

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express the amount of a substance. It is defined as the amount of substance that contains as many entities (atoms, molecules, etc.) as there are in 12 grams of carbon-12.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass of a compound, sum the atomic masses of all the atoms in the compound's formula, using the periodic table.

Front

What is the molar mass of Calcium Chloride (CaCl2)?

Back

The molar mass of CaCl2 is approximately 110.98 g/mol (40.08 g/mol for Ca and 35.45 g/mol for each Cl).

Front

How many grams are in 1 mole of a substance?

Back

1 mole of a substance contains a mass equal to its molar mass in grams.

Front

What is the mass of 0.89 mol of CaCl2?

Back

The mass is 98.9 grams.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).

Front

How many moles are in 36.0 g of Beryllium (Be)?

Back

There are 4.0 moles of Be.

Front

What is the molar mass of Iron (Fe)?

Back

The molar mass of Iron (Fe) is 55.93 g/mol.

Front

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

Back

The mass is 80 grams.

Front

Which has the greatest mass: 1 mole of Carbon, 2 moles of Hydrogen, 1 mole of Silver, or 1 mole of Gold?

Back

1 mole of Gold has the greatest mass.