Chemistry: Matter and Change

Section 4: Percent Yield

Self Check Quizzes

1
What is the maximum amount of product that can be produced from a given amount of reactant?
A)percent yield
B)theoretical yield
C)actual yield
D)mole ratio
2
The reaction of 5.0 grams of fluorine with excess chlorine produced 5.6 grams of ClF3. What percent yield of ClF3 was obtained?

Cl2 + 3F2 → 2ClF3
A)0.58
B)0.69
C)0.76
D)0.86
3
In the bunsen burner reaction of methane and oxygen, what is the percent yield if 64.0 g of methane yields 95.1 grams of carbon dioxide?

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
A)0.46
B)0.54
C)1.49
D)0.5
4
Percent yield can never be greater than ________.
A)theoretical yield
B)100%
C)both a and b
D)50%
5
The statement that percent yield can never be greater than theoretical yield is another example of the ________.
A)ideal gas law
B)law of conservation of mass
C)law of conservation of momentum
D)law of conservation of energy
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