how many moles of HCl will be present in 100 ml of a solution of specific gravity 1.08 containing 20% hcl by mass
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Given density in specific gravity of HCl=1.08
As 20% of HCl is present by mass
In 100ml solution 20% of it contain HCl by mass
20% of 100ml=20ml
20ml of solution has m mass of HCl, with specific gravity =108
Thus m=1.08×20ml=21.6g
Mass of HCl present in 100ml of solution is 21.6g
Thus moles of HCl =
36.5g/mole
21.6g
=0.6mole
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