MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryMole _ Equivalent ConceptAtomic and Molecular Masses

What is the mass of hydrogen in terms of amu?

A.1.0020 amu

B.1.0180 amu

C.1.0070 amu

D.1.0080 amu✓ Correct

Explanation

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 g/ 1.66056 × 10–24g = 1.0078 amu = 1.008 amu.

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