Question

Calculate the mass of glucose and mass of water required to make 200g of 25% solution of glucouse.

Answer 1

Given

Mass of solution(M) = 200g

Concentration of solution = 25%

Percentage of solution = mass of solute(m) × 100 / mass of solution(M)

⇒ 25 = m × 100/200g

⇒ m = 25 × 200/100 = 50g

∴ Mass of solute = 50g

Mass of solvent = M - m = 200g - 50g = 150g

Answer 2

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Question

Calculate the mass of glucose and mass of water required to make 200g of 25% solution of glucouse.

Answer

Given :-

M= 200 g

Conc=25%

Formula used

% of solution =m×100/M

Calculation

25=m×100/200

m=50 g

Mass of solute is 50g

Mass of solvent is M-m

=200-50

That is 150 g.