1.4: Chemical Equations and Moles

Question 1

Define molar mass

Answer 1

The mass of one mole of a substance

Unit: g/mol

Question 2

What is the rule for 1 mole of any gas?

Answer 2

1 mole of any gas occupies the same volume at standard
temperature and pressure.

V=22.4L

Question 3

Equation for molarity

Answer 3

Molarity = number of moles / volume in litres

Unit: mol/L (M)

Question 4

What is the equation for finding unkown concentrations/volumes?

Answer 4

c1v1 = c2v2