Ratios
2H2 + O2 --> 2H2O
What is the mole ratio of H2 to O2?
Write your answer in the form A:B
2:1
2H2 + O2 --> 2H2O
How many moles of H2O are formed from from 1.45 moles of O2?
2.90 moles H2O
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
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
N2 + 3H2 --> 2NH3
What is the mole ratio of NH3 to H2?
Write your answer in the form A:B
2:3
N2 + 3H2 --> 2NH3
How many moles of NH3 are formed from 2.50 moles of N2?
5.00 moles NH3
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
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
DOUBLE JEOPARDY
CH4 + O2 --> 2H2O + CO2
What is the ratio of H2O to CO2?
Write your answer in the form A:B
2:1
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
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
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
2C2H6 + 7O2 --> 4CO2 + 6H2O
What is the mole ratio of C2H6 to O2?
Write your answer in the form A:B
2:7
DOUBLE JEOPARADY!!!
2C2H6 + 7O2 --> 4CO2 + 6H2O
How many moles of O2 are needed to form 6.35 moles of CO2?
11.1 moles O2
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
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
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
2C2H6 + 7O2 --> 4CO2 + 6H2O
How many moles of CO2 are formed from 2.95 moles of C2H6?
5.9 moles CO2
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
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