Question #f6853

1 Answer
P dilip_k
Oct 29, 2016

Molar mass of MgSO_4=24+32+4*16=120" g/mol"

7.5xx10^2mLor 0.75L" "0.000450M" " MgSO_4 solution contains 0.75xx4.5xx10^-4 mol " " MgSO_4

= 3.375xx10^-4 molxx120g/"mol"=4.05xx10^-2g " "MgSO_4

=40.5mg " "MgSO_4

So 4.05mg " "MgSO_4 is to be taken taken in a 750mL volumetric flask and after dissolving it in water volume is made up to 750mL by adding water.

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