Question

a solution contain 40 cm cube of alcohol mixed with 150 cm cube of water calculate the concentration of alcohol​

Answer 1

Explanation:

Volume of alcohol in the solution=$40cm^3$

Volume of water in the solution=$150cm^3$

Total volume of the solution=$40cm^3+150cm^3=\bf 190cm^3$

To find,

Concentration of alcohol in the solution

To find concetration of a given liquid, we use this formula

$\bf \frac{volume\ of\ solution\ we\ want\ to\ find}{Total\ volume}\times 100$

Putting values in the equation

$\frac{40}{190}\times 100\\ \\ \\ \implies \frac{400}{19}\\ \\ \\ \bf \therefore The\ concentration\ of\ alcohol\ in\ the\ given\ solution\ is\ 21.0526315789\ cm^3$

Answer 2

Answer:

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