Question

Answer the second one..

Answer 1

The specific gravity of HCl is 1.25 g/ml
Therefore
Weight of 60 ml of HCl
= (1.25 × 60)
= 75 g

Concentration of HCl in the solution =
Weight of solute/Weight of solvent × 100

=> 75/200 × 100
=> 75/2
=> 37.5 %

Concentration of HCl in the solution by (w/w) = 37.5%

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Answer 2

weight of HCl = specific gravity * 60ml = 1.25*60 = 75
Concentration of solution by weight =

75/(200+75) = 75/275 = 3/11 or 27.27 percent

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