Equations of Compounds and Stoichiometry (Ch4)

Question 1

Moles from mass equation

Answer 1

moles = mass of sample/molar mass

Question 2

gram equivalent weight equation

Answer 2

GEW = Molar mass/n

Question 3

equivalents from mass equation

Answer 3

Equivalents = mass of compound/gram equivalent weight

Question 4

molarity from normality equation

Answer 4

Molarity = molar mass/n

Question 5

percent composition equation

Answer 5

% composition = (Mass of element in formula/ Molar mass) * 100%

Question 6

Percent yield equation

Answer 6

% yield = actual yield/theoretical yield * 100%