A solution is prepared by adding 2 g of “X” to 1 mole of water. Mass percent of “X” in the solution is [2023]

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Solution

Q.
A solution is prepared by adding 2 g of “X” to 1 mole of water. Mass percent of “X” in the solution is [2023]

1 20%

2 5%

3 2%

4 10%

Ans.
(4)

$Mass % of A in solution = \frac{W_{A}}{S_{solution}} \times 100$

$= \frac{2}{20} \times 100 = 10 %$

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