Jan 15 Chem Quiz
5 Questions
| Attempts: 145
This quiz covers molecular geometry, molecular mass, % composition, and emperical formulas.
Questions and Answers
- 1.
What is the molecular geometry of CH4
- A.
Linear
- B.
Trigonal Pyramidal
- C.
Bent
- D.
Tetrahedral
Correct Answer
D. Tetrahedral -
- 2.
How many lone pairs of electrons are in the molecule NH3?
- A.
One
- B.
Two
- C.
Three
- D.
Four
Correct Answer
A. One -
- 3.
Is a water molecule polar or non-polar?
- A.
Polar
- B.
Non-polar
Correct Answer
A. Polar -
- 4.
What is the molar mass of lithium chloride?
- A.
89.57g/mol
- B.
42.39 g/mol
- C.
6.94 g/mol
- D.
20.0 g/mol
Correct Answer
B. 42.39 g/mol -
- 5.
What is the empirical formula for a compound that is 63.52% iron and 36.48% sulfur? (assume all numbers in answer choices are subscripts)
- A.
Fe2S2
- B.
Fe2S3
- C.
FeS2
- D.
FeS
Correct Answer
D. FeS -
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Current Version
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Mar 14, 2022Quiz Edited by
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Jan 08, 2010Quiz Created by
Kellygramling
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