Unit Five B

Question 1

Each mole ratio

Answer 1

Comes from a balanced chemical equation
Shows the number of moles of each substance
Shows the mole coefficient for the wanted substance in the numerator and the mole coefficient for the given he denominator

Question 2

Steps to convert moles of substance A to moles of substance B

Answer 2

Write a balanced chemical equation for the reaction
Identify the given and wanted substances and list relevant information under each substance in the equation
Multiply the given amount by the mole ratio

Question 3

Stoichiometry

Answer 3

Making a prediction about the amounts of reactants and products involved in a chemical reaction

Question 4

The mole ratio

Answer 4

A mathematical expression that shows the relative amounts of two items involved in a chemical change

Question 5

Molar mass is used when…

Answer 5

Converting grams to moles and back

Question 6

Avogadro’s number (?) is converts…

Answer 6

(6.02x10^23)

Moles to molecules and back

Question 7

Limiting reactant

Answer 7

Used up completely

Limits amount of product

Question 8

Excess reactant

Answer 8

Does not get completely consumed during the reaction

Question 9

Theoretical yield

Answer 9

Amount you expect to be produced

Question 10

Actual yield

Answer 10

Experimental value (what you actually collected)

Question 11

Percent yield formula

Answer 11

(Actual/theoretical) x 100