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The molarity of Na^(+), when the average...

The molarity of `Na^(+)`, when the average concentration of `Na^(+)` in human blood serum is about 3.4 g `L^(-1)`, is

A

8.4

B

2.3

C

0.68

D

0.15

Text Solution

Verified by Experts

The correct Answer is:
d
Molarity (M)
`=("Weight of solute//litre of solution")/("Molecular weight of solute")`
`=(3.4gL^(-1))/(21.2)=0.15`
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