Chemistry
Grade-9
Easy
Question
1 atomic mass unit is equal to
- 1.6605 x 10 kg
- 1.6605 x 1024 kg
- 6.026 x 1024 kg
- 1.6605 x 1023 kg
Hint:
An atomic unit of mass is defined as accurately 1/12 the mass of a carbon-12 atom.
The correct answer is: 1.6605 x 1024 kg
An atomic unit of mass is defined as accurately 1/12 the mass of a carbon-12 atom.
1 a.m.u. = (1/12) 
(12/6.022*1023) g
= 1.66 10-27 kg
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