Molar and Formula Mass and Ionic Compound Name

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a chemical formula.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, identify the elements in the compound, find their atomic masses on the periodic table, and multiply each atomic mass by the number of times that element appears in the formula. Then, sum all the values.

Front

What is the molar mass of MgF₂?

Back

62.31 g/mol.

Front

What is the molar mass of Mg(OH)₂?

Back

58.32 g/mol.

Front

What is the formula for chromium (III) phosphate?

Back

CrPO₄.

Front

What is the name of the compound FeP?

Back

Iron (III) phosphide.

Front

What is the name of LiNO₃?

Back

Lithium nitrate.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons from one atom to another, resulting in charged ions, while covalent compounds are formed by the sharing of electrons between atoms.

Front

What is the significance of the Roman numeral in compound names like Iron (III) phosphide?

Back

The Roman numeral indicates the oxidation state of the metal in the compound, which is important for understanding the charge of the ions involved.

Front

What is the formula for sodium sulfate?

Back

Na₂SO₄.