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CHM 101 CHM 101 Past Questions Objective Question

Question

A sample of water has a mass of 342.9 × 10⁻⁶ g at 31°C. What is the appropriate SI prefix and temperature in °F.
Options
A 342.9 µg and 49.22 °F
B 342.9 µg and 87.8 °F
Correct Answer
C 342.9 ng and 87.8 °F
D 342.9 ng and 49.22 °F
Correct Answer

Option B is the correct answer.

Detailed Explanation

342.9 × 10⁻⁶ g = 342.9 µg. °F = (31 × 9/5) + 32 = 55.8 + 32 = 87.8 °F.

Hint

10⁻⁶ g = microgram (µg). Use °F = (°C × 9/5) + 32.

Question Info