Unit 6 Chemistry review

Front

What is Avogadro's number of representative particles equal to?

Back

One mole.

Front

What is a chemical formula that shows the actual number and kinds of atoms present in one molecule of a compound called?

Back

Molecular formula.

Front

Calculate the molar mass of Ba(C2H3O2)2.

Back

255.3 g/mol.

Front

Calculate the molar mass of KOH.

Back

56 g/mol.

Front

What is the molar mass of UF6?

Back

352 g/mol.

Front

Define molar mass.

Back

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

Front

What is the empirical formula?

Back

The simplest whole-number ratio of atoms in a compound.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons, while covalent compounds are formed by the sharing of electrons.

Front

What is the significance of the mole in chemistry?

Back

The mole is a fundamental unit in chemistry that allows chemists to count particles by weighing them.

Front

How do you calculate the molar mass of a compound?

Back

Add the atomic masses of all atoms in the chemical formula.