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How many electron(s) is/are present in 1...

How many electron(s) is/are present in 1.8 mL of water (density =1g/mL)?

A

`0.1xx6.023xx10^(23)`

B

`10xx6.023xx10^(23)`

C

`6.023xx10^(23)`

D

`1.8xx10xx6.023xx10^(23)`

Text Solution

Verified by Experts

The correct Answer is:
C
Mass of 1.8 mL water `=1.8xx1=1.8g`
No. of moles `=(1.8)/(18)=0.1`
One molecule of `H_(2)O` contains 10 electrons.
`therefore` No. of electrons of 0.1 mole `=0.1xx10=1"mole"=6.023xx10^(23)`
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