Chapter 4 - Compounds And Stoich

Question 1

What are equivalents? Gram equivalent weight?

Answer 1

How many moles of the ‘thing you are interested in (protons, OH, e-, ions…etc) will one mole of a given compound produce?

GEW = MM/n

n = number of particles of interest produces per molecule in the reaction

Question 2

How do we calculate equivalents if we know the amount of a compound in a reaction ?

Answer 2

Equivalents = (mass of compound) / gram Eq. Weight

Question 3

What is NORMALITY? (N)

Answer 3

A measure of concentration

Equivalents per liter

Molarity = Normality / n.

n = number of H+, OH-, e-..etc

Question 4

Percent yield

Answer 4

% yield = actual / theoretical

Question 5

Memorize nomenclature of ionic compounds based on names of component ions

Answer 5

See page 135 in chemistry

Or look at screen shots