Question

40 ml methanol is present in 160ml of its aqueous solution .what is the concentration of the solution in volume by volume percentage.

Answer 1

Answer:

25% V/V solution.

Explanation:

Volume of ethanol = 40 ml

Volume of solution = 160 ml

Formula for calculating percentage:

$\text {Percentage of Constituent=} \dfrac{\text{Amount of Constituent}}{\text{Total Amount}}\times 100$

$\text {Percentage of Ethanol = } \dfrac{\text{40}}{\text{160}}\times 100\\\Rightarrow \dfrac{1}{4} \times 100\\\Rightarrow 25\%$

% V/V is the representation in which first V represents the volume of constituent and second V represents the total volume of the aqueous liquid.

Hence, the concentration of solution in volume by volume percentage is 25% V/V.

Answer 2

Answer:

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