Chapter 9 flash cards

Front

Mole

Back

The Si base unit measure of the amount of a substance in terms of the total number of particles.

Front

Avogadro's Number

Back

6.02 X 10^23

Front

Molar Mass

Back

The mass in grams of one mole of any pure substance

Front

percent composition

Back

The percent by mass of each element in a compound

Front

Empirical formula

Back

1. a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

Front

Molecular formula

Back

specifies the actual number of atoms of each element in one molecule or formula unit of the substance

Front

Hydrate

Back

A compound that has a specific number of water molecules bound to it within the atomic lattice