What is the percent by volume of a solution formed by mixing 25ml of isopropanol with 45ml water

I assume that you mix the 25 mL alcohol with 45 mL water.

The answer depends on a big IF : IF the volumes are additive. Very often volumes of liquids are not additive

Total volume = 70 mL

isopropyl alcohol %(v/v) = 25mL/ 70 mL * 100 % = 35.7% v/v

The answer should have only 2 significant digits: 36%v/v

Explanation:

Hope it helps

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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