Molar Mass Test Review

Chemistry

The mole

A method of Counting materials used in chemical reactions.

reacting

Counting total number of atoms is not practical since most reactions involve large numbers of atoms…….

particles

The mole is defined as a number of…………

Avogadro’s Number

6.02 x1023 particles make up one mole which is called……………….

grams

One mole of an element is equal to the element’s atomic mass measured in……………..

63.54 grams

One mole of copper would weigh………….

26.98 grams

One mole of aluminum would weigh……………..

molar mass

The mass of one mole of any substance is called its……………..

elements

If you add the mass of all…………… in a compound, you will get the mass of one mole of the molar mass.

S = 32 neutrons

Oxygen = 16 neutrons multiplied by 3

SO3 = S + O + O + O

32 + 16 (3)

32 + 48 = 80 g/ml

Final answer: 80 g/ml

Example: What is the molar mass of Sulfur Oxide (III) which is SO3?