Chemistry

Grade-9

Easy

Question

# What is the mass of hydrogen in terms of amu?

- 1.0020amu
- 1.0030amu
- 1.0060amu
- 1.0080amu

Hint:

### To convert from gram to amu it is divided by 1.66056×10^{-24} g.

## The correct answer is: 1.0080amu

### The mass of a hydrogen atom is 1.6736×10^{-24} g. When converted in terms of amu, 1.6736×10^{-24} g should be divided by 1.66056×10^{-24} g.

(1.6736 10^{-24}) (1.66056 10^{-24}) = 1.0078 amu 1.008 amu

The mass of hydrogen in terms of amu is 1.008 amu.

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