Question

mass of one atom of carbon has been found to br 1.993×10^-23g. calculate mass of 1 u

Answer 1

1 Atomic Mass unit or Unified mass is defined as one - twelfth of the mass of the Carbon - 12 atom.

Given the Mass of Carbon - 12 = 1.993 × 10⁻²³ grams

⇒ 1 Amu or Unified mass = 1/12 ×  1.993 × 10⁻²³ grams = 1.66 × 10⁻²⁴ grams.

hence 1 Amu or Unified mass = 1.66 × 10⁻²⁴ grams.

Answer 2

Answer:

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Explanation:

Mass of 1 mole = 12gm

Mass of 6.022×10

23

atom=12gm

mass of 1 atom =

6.023×10

23

12

=1.993×10

−23

gm