A solution is prepared by adding 5 g of a solute 'X' to 45 g of solvent 'Y'. What is the mass per cent of the solute 'X'?

Question

A solution is prepared by adding 5 g of a solute 'X' to 45 g of solvent 'Y'. What is the mass per cent of the solute 'X'? (A) 10 % (B) 11.1 % (C) 90 % (D) 75 %

Tardigrade Admin · Accepted Answer

Mass percent of X = ( textMass of X/ textMass of solution) × 100 = (5/5+45) × 100 = 10 %

Q. A solution is prepared by adding $5 g$ of a solute $^{'} X^{'}$ to $45 g$ of solvent $^{'} Y^{'}$ . What is the mass per cent of the solute $^{'} X^{'}$ ?

$10%$

$11.1%$

$90%$

$75%$

Mass percent of $X = \frac{Mass of X}{Mass of solution} \times 100$
$= \frac{5}{5 + 45} \times 100 = 10%$

Q. A solution is prepared by adding 5g of a solute ′X′ to 45g of solvent ′Y′. What is the mass per cent of the solute ′X′?

10%

11.1%

90%

75%