Question

An aqueous solution of sulphuric acid is 40.0 percent w/v

Answer 1

density = mass/volume

1.3 = mass/ 40

mass = 52 g

Now,

mass of H2SO4 = 52 g

and total volume of solution = 100

mass by volume percentage is the mass dissolved in 100 mL of the solution

Thus, m/v % = 52 %

Answer 2

Hii

you are welcome in my ans

molar mass = 32 + 2+64= 94

molar mass = 9400/40= 23.5

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