Percent Composition Of Chemical Compounds
8 Questions
| Total Attempts: 2242
Chemical compounds are made up of chemical elements which have different numbers attached to them. This quiz is designed to test your knowledge on the chemical elements and as a result calculation of percent composition of chemical compounds.
Questions and Answers
- 1.What are the percent composition for SF2?
- A.
55 % Sulfur and 45% Fluorine
- B.
45.76% Sulfur and 54.39 % Fluorine
- C.
33% Sulfur and 67% Fluorine
- D.
49.2 % Sulfur and 50.8 % Fluorine
- 2.What is the percent composition of Ethyne? C2H2?
- A.
92.31% Carbon and 7.76% Hydrogen
- B.
82% Carbon and 18% Hydrogen
- C.
82.7% Carbon and 17.3 % Hydrogen
- D.
90% Carbon and 14 % Hydrogen
- 3.What is the percentage of Sulfur in SF2?
- A.
32.06 % Sulfur
- B.
25% Sulfur
- C.
70.06 % Sulfur
- D.
62.67 % Sulfur
- 4.. What is the empirical formula for a compound that contains 1.67 mole Carbon and 5.01 Moles of Hydrogen
- A.
CH
- B.
CH2
- C.
C2H3
- D.
CH3
- 5.What is the empirical formula for a compound that contains 5.28 moles Oxygen, 1.32 moles Sulfur and 2.64 moles Hydrogen
- A.
HSO
- B.
H2SO2
- C.
H2SO4
- D.
HSO2
- 6.What is the empirical formula for a compound that contains 22.00 % N and 78.0 % O
- A.
N2O5
- B.
NO3
- C.
N2O3
- D.
N)2
- 7.What is the empirical formula for a compound that contains 37.69% Na and 62.31 % Fluorine?
- A.
NaF3
- B.
Na2F
- C.
NaF
- D.
NaF2
- 8.What is the empirical formula for: 85.60% C and 14.40% H?
- A.
C2H3
- B.
CH2
- C.
CH3
- D.
C2H4
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