Concentration - Volumetric Analysis

[naved_s9994]

Hey guys,
Wondering if anyone can help?

Convert the molar concentration to units of g L ^-1 :

0.0024M NaCl solution

Can anyone work this out
Thanks!

[monokekie]

 
sry i suck at explaining.

but here's my working.
0.0024 x ( 23+35.5) = something g L^-1

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Whenever you're stuck with units you can resort to canceling out units like this

[lukeperry91]

Consider this solution to have a volume of one litre:
n=cv
n=0.0024
m=nM
m=0.0024*(23+35.5)
m=0.1404g (in one litre)
Therefore, the concentration equals 0.1404gL^-1

[naved_s9994]

ahh thanks everyone.
soo thankful !!