Question

The mass of an oxygen atom is 26.00 u. Find its mass in Kg.

Answer 1

Given mass of oxygen atom = 16 u

We know 1 u = 1.66 × 10⁻²⁷ kg

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Hence 16 u =  16 × 1.66 × 10⁻²⁷ = 26.56 × 10⁻²⁷ kg