Stoichiometry

Mole to Mole

100

When converting from moles to moles, what conversion factor would you use?

Mole Ratio or coefficients from the balanced equation

200

S₈ + 8 O2 → 8 SO₂
If 0.9814 moles of O₂ are reacted, how many moles of S₈ will also be reacted?

0.1227 moles S₈

300

S₈ + 8 O₂ → 8 SO₂
If 0.56 moles of O₂ are reacted, how many moles of SO₂ will be produced?

0.56 moles SO₂

400

Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
If 3.05 moles of CO are reacted, how many moles of Fe will be produced?

2.03 moles CO₂

500

Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
If 4.09 moles of Fe₂O₃ are reacted, how many moles of Fe will be produced?

8.18 moles Fe

Mole to Gram

100

4 KClO₃ → 3 KClO₄ + KCl
If 3.58 moles of KClO₄ are produced, how many grams of KCl will also be produced?

89.0 grams KCl

200

4 KClO₃ → 3 KClO₄ + KCl
If 1.40 moles of KClO₃ are reacted, how many grams of KClO₄ will be produced?

146 grams KClO₄

300

Zn + CuSO₄ → ZnSO₄ + Cu
If 0.9352 moles of Cu are produced, how many grams of ZnSO₄ will also be produced?

151.0 grams ZnSO₄

400

Zn + CuSO₄ → ZnSO₄ + Cu
If 1.2 moles of Cu are produced, how many grams of Zn were reacted?

78 grams Zn

500

Zn + CuSO₄ → ZnSO₄ + Cu
If 4.700 moles of CuSO₄ are reacted, how many grams of Zn will need to react?

307.3 grams Zn

Gram to Mole

100

4 KClO₃ → 3 KClO₄ + KCl
If 14.67 grams of KClO₄ are produced, how many moles of KCl will also be produced?

0.03529 moles KCl

200

4 KClO₃ → 3 KClO₄ + KCl
If 145 grams of KClO₄ are produced, how many moles of KClO₃ will have reacted?

1.40 moles KClO₃

300

Zn + CuSO₄ → ZnSO₄ + Cu
If 146 grams of Zn are reacted, how many moles of ZnSO₄ will be produced?

2.23 moles ZnSO₄

400

Zn + CuSO₄ → ZnSO₄ + Cu
If 96.7 grams of Cu are produced, how many moles of ZnSO₄ will also be produced?

1.52 moles ZnSO₄

500

Zn + CuSO₄ → ZnSO₄ + Cu
If 902 grams of Cu are produced, how many moles of Zn will have reacted?

14.2 moles Zn

Gram to Gram

100

What 3 pieces of information does one need to convert between grams of different substances?

molar mass of substance A, mole ratio, molar mass of substance B

200

Li₂O + H₂O → 2 LiOH
If 1.46 grams of Li₂O are reacted, how many grams of H₂O will also be reacted?

0.880 grams H₂O

300

Li₂O + H₂O → 2 LiOH
If 1.46 grams of Li₂O are reacted, how many grams of LiOH will be produced?

2.34 grams LiOH

400

Li₂O + H₂O → 2 LiOH
If 304 grams of H₂O are reacted, how many grams of LiOH will be produced?

808 grams LiOH

500

Li₂O + H₂O → 2 LiOH
If 1204 grams of H₂O are reacted, how many grams of Li₂O will also be reacted?

1997 grams Li₂O

Limiting/Excess % Yield

100

Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
If 0.951 moles of Fe₂O₃ are reacted with 347.89 grams of CO, how many moles of CO₂ will be produced?

2.85 moles CO₂

200

What is the formula for percent yield?

(Actual / Theoretical) x 100

300

If the experimental yield of a reaction was supposed to be 18.2 grams and a student got a yield of 17.6 grams, what was their percent yield?

96.7%

400

Fe₃O₄ + 4 H₂ → 3 Fe + 4 H₂O
If 0.3234 moles of Fe₃O₄ are reacted with 1.241 moles of H₂, how many moles of Fe will be produced?

0.9308 moles Fe

500

Fe₃O₄ + 4 H₂ → 3 Fe + 4 H₂O
If 1.2 moles of Fe₃O₄ are reacted with 0.98 moles of H₂, what is the limiting reactant?

H₂