Question

The concentration of a solution is 8% (w / w) and 10% (w / v). The density of solution is : A 1.25 g/ml B 2.34 g/ml C 1.56 g/ml D 2.65 g/ml

Answer 1

Answer:

Concentration (w/w) is 8%.

This means that 8g of the solute is present in 100g of solution.

Concentration (w/v) is 10%.

∵ weight of solute is 8g.

∴ Volume of solution = 8×10 = 80mL

Therefore,

Density of solution (d) = mass of solution

_______________

volume of solution

⇒ d = 100/80 = 1.25g/mL

Hence the density of solution will be 1.25g/mL.

So the correct option is A

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