### scientific notation

All numbers are expressed as a product of a number between 1 and 10 and a whole number power of ten.

### molarity

A unit of concentration equeal to the number of moles of solute in a cubic decimeter of a solution.

### formula mass

The sum of the atomic masses of all atoms in the formula unit of an ionic compound is the ___.

### 9.63 X 10 to the twenty third power

How many molecules of sulfur dioxide are present in 1.6 moles of sulfur dioxide?

### mole

Which of the following units is used to represent the chemical quantity of a substance as a number of particles?

### 44 g

If one molecule of CO2 has a mass of 44 u, what is the mass of 6.02 X 10 to the twenty third power molecules of CO2?

### volume of the solution in cubic decimeters

Molarity is the ratio between the moles of dissolved substance and the ___.

### Atoms and molecules are extremely small

Which of the following statements explain why chemists do not count atoms and molecules directly?

### 1.50 M

What is the concentration of a solution that contains 90.3 g of MgSO4 in 5.00 X 10 squared cm cubed?

### kg/1000 g

Which of the following could be used as a conversion factor in solving a problem by the factor-label method?

### C3Cl3N3O3

Symclosene, a disinfectant used in household cleaners, has an empirical formula of CCINO and a molecular mass of 232.432 u. What is the molecular formula of symclosene?

### hydrate

A crystalline substance that contains water molecules in a definite ratio with each formula unit is a(n) ___.

### 1.20 X 10 to the twenty fifth power.

The formula for borax is 2(Na2B4O-) X 10H2O. The number of water molecules in two moles of borax formula units is ___.