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Analysis of chlorophyll shows that it co...

Analysis of chlorophyll shows that it contains 2.68% Mg. Number of magnesium atoms present in 2.4 g of chlorophyll is

A

`2.68xx6xx10^(21)`

B

`2.68xx6xx10^(23)`

C

`2.68xx6xx10^(20)`

D

`2.68xx6xx10^(20)//24`

Text Solution

Verified by Experts

The correct Answer is:
C
100 g chlorophyll - 2.68 g Mg
2.4 g chlorophyll - `(2.4xx2.68)/(100)gMg`
`24Mg-6.023xx10^(23)` Mg atoms
`(2.4xx2.68)/(100)gMg`
`-(2.4xx2.68)/(100)xx(6.023xx10^(23))/(24)Mg` atoms
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