The mass of an atoms of hydrogen is 1. 008 u. What is the mass of 18 atoms f hydrogen ?
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Answer:
Given : Mass of 1 atom of hydrogen =1.008 u ( u => atomic mass unit).
To find: mass of 18 atoms of Hydrogen
Calculation:
Applying unitary method:
The mass of 18 atoms oh hydrogen
= 18*(mass of 1 atom of hydrogen)
= 18*1.008
= 18.144 u.
Hence the answer is 18.144 u
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