Show:
Ratios
Moles to Moles
Moles to Grams
Grams to Grams
100

2H2 + O2 --> 2H2O 

What is the mole ratio of H2 to O2? 

Write your answer in the form A:B

2:1

100

2H2 + O2 --> 2H2O 

How many moles of H2O are formed from from 1.45 moles of O2?

2.90 moles H2O

100

2H2 + O2 --> 2H2O 

How many grams of H2 (2.02 g/mol) are needed to form 9.30 moles of H2O (18.02 g/mol)?

18.8 grams H2

100

2H2 + O2 --> 2H2O 

How many grams of H2 (2.02 g/mol) are needed to react with 190 grams of O2 (32.00 g/mol)?

23.99 grams H2

200

N2 + 3H2 --> 2NH3

What is the mole ratio of NH3 to H2?

Write your answer in the form A:B

2:3

200

N2 + 3H2 --> 2NH3

How many moles of NH3 are formed from 2.50 moles of N2?

5.00 moles NH3

200

N2 + 3H2 --> 2NH3

How many grams of NH3 (14.04 g/mol) are formed from 2.50 moles of N2 (28.02 g/mol)?

70.2 grams NH3

200

N2 + 3H2 --> 2NH3

How many grams of NH3 (14.04 g/mol) are formed from 352 grams of H2 (2.02 g/mol)?

1,631 grams NH3

300

DOUBLE JEOPARDY

CH4 + O2 --> 2H2O + CO2

What is the ratio of H2O to CO2?

Write your answer in the form A:B

2:1

300

Cu + 4HNO3 --> Cu(NO3)2 + 2NO2 + 2H2O

How many moles of HNO3 are needed to form 3.20 moles of Cu(NO3)2 ?

12.8 moles HNO3

300

CH4 + O2 --> 2H2O + CO2

If 3.78 moles of O2 (32.00 g/mol) are used in this reaction, how many grams of H2O (18.02 g/mol) will be produced?

136.2 grams H2O

300

DOUBLE JEOPARDY

CH4 + O2 --> 2H2O + CO2

If 526 grams of CH4 (16.05 g/mol) are used in this reaction, how many grams of H2O (18.02 g/mol) will be produced?

1,181 grams H2O

400

2C2H6 + 7O2 --> 4CO2 + 6H2O

What is the mole ratio of C2H6 to O2?

Write your answer in the form A:B

2:7

400

DOUBLE JEOPARADY!!!

2C2H6 + 7O2 --> 4CO2 + 6H2O

How many moles of O2 are needed to form 6.35 moles of CO2?


11.1 moles O2

400

2C2H6 + 7O2 --> 4CO2 + 6H2O

How many grams of O2 (32.00 g/mol) will be needed to produce 4.70 moles of CO2 (44.01 g/mol)?

263.2 grams O2

400

2C2H6 + 7O2 --> 4CO2 + 6H2O

How many grams of O2 (32.00 g/mol) will be needed to produce 37.98 grams of H2O (18.02 g/mol)?

78.7 grams O2

500

Cu + 4HNO3 --> Cu(NO3)2 + 2NO2 + 2H2O

What is the mole ratio of HNO3 to NO2?

(You MUST show the original answer and SIMPLIFY it).

4:2

2:1

500

2C2H6 + 7O2 --> 4CO2 + 6H2O

How many moles of CO2 are formed from 2.95 moles of C2H6?

5.9 moles CO2

500

Cu + 4HNO3 --> Cu(NO3)2 + 2NO2 + 2H2O

If 7.67 moles HNO3 (63.02 g/mol) are used in the equation, how many grams of NO2 (46.01 g/mol) will be produced?

176.4 grams NO2

500

Cu + 4HNO3 --> Cu(NO3)2 + 2NO2 + 2H2O

If 313 grams Cu (63.54 g/mol) are used in the equation, how many grams of NO2 (46.01 g/mol) will be produced?

453.4 grams NO2