chem

Question 1

moles

Answer 1

mass (g)/ molar mass

Question 2

mass (g)

Answer 2

moles x molar mass

Question 3

particles

Answer 3

moles x 6.022 x10^23

Question 4

gas volume

Answer 4

moles x 22.4L

Question 5

percent yield

Answer 5

actual/theoretical x 100

Question 6

percent composition

Answer 6

mass of element/ total molar mass x 100

Question 7

Percent water

Answer 7

mass of water lost/mass of hydrate x 100

Question 8

stoichiometry step 1:

Answer 8

balance equation

Question 9

stoichiometry step 2:

Answer 9

convert give value to moles

Question 10

stoichiometry step 3:

Answer 10

use mole ratio: moles wanted/moles given

Question 11

stoichiometry step 4:

Answer 11

convert moles to what is wanted

Question 12

substance that runs out first and limits how much product forms.

Answer 12

limiting reactant

Question 13

Theoretical yield

Answer 13

calculated maximum possible product

Question 14

Actual yeild

Answer 14

Product actually obtained in lab