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Stoich Mix And Match/Limiting Reactant!
Test Description: Mix and Match and Limiting Reactant Problems
Instructions: Answer all questions to get your test result.
1) For the reaction C2H4 + 3 O2 --> 2 CO2 + 2 H2O, what number of grams of CO2 could be produced from 2.0 g of C2H4 and 5.0 g O2
A
4.6 g
B
5.5 g
C
None of the above
D
6.3 g
2) How many grams of steam must react to produce 375 g of Fe3O4; 3 Fe + 4 H2O --> Fe3O4 + 4 H2
A
161 g
B
29.2 g
C
6.48 g
D
117 g
3) SO2 + H2O --> H2O What is the maximum number of H2SO3 made given the following 33.6 g SO2 and 55.3 g H2O;
A
43
B
50
C
9.5
D
252
4) What volume of methane is needed to completely react with 500 liters of oxygen? CH4 + 2 O2 --> CO2 + 2 H2O
A
300 L
B
600 L
C
.500 L
D
250 L
5) How many liters of hydrogen are produced by reacting 3.54 x 10^24 atoms of HCl in the UNBALANCED reaction. Al + HCl --> AlCl3 + H2
A
150
B
198
C
299
D
190
6) Who coefficents would go infront of the following compounds to balance? KClO3 --> KCl + O2
A
4, 3, 6
B
2, 2, 3
C
1, 1, 1
D
1, 2, 2
7) How many stoichiometry lines are needed in a limiting reactant problem where we want to know how much excess is left over?
A
4
B
2
C
1
D
3
8) Stoichiometry is defined as
A
Weighing compounds
B
Measuring quantities
C
Measuring moles
D
A german sausage
9) When converting gram given to gram wanted, the first step is to do what
A
1 mol / molar mass
B
molar mass / 1 mol
C
1 mol / 22.4
D
6.02 x 10^23 / 1 mol
10) What is the molar mass of Cl2
A
100 amu
B
35.45 amu
C
70.9 amu
D
60 amu
*select an answer for all questions
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