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Ways of Representing the Concentration of a Solution

What is the m...

Question

What is the meaning of 10% solution of $N a C l$ ?

10 g

N a C l

in 100 grams of solution

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58.5 g

N a C l

in 100 grams of solution

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94 g

N a C l

in 100 grams of solution

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5.85 g of

H_{2} O

in 100 grams of solution

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Solution

The correct option is B 10 g $N a C l$ in 100 grams of solution
10% solution of NaCl means 10 g NaCl in 100 grams of solution.
Mass by mass percentage of a solution is the ratio of the mass of solute to the total mass of solution multiplied by 100.
Mass by mass percentage $= \frac{10 g NaCl}{100 g solution} \times 100 = 10$ %

Therefore, option A is correct.

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