Abottle of antiseptic hydrogen peroxide (h2o2) is labeled 3.0% (v/v). how many ml h2o2 are in a 400.0 ml bottle of this solution?

use this formula: percent by volume: volume of solute/volume of solution×100%

= 12 mL H202

Explanation:

Given that, the concentration of H2O2 is given antiseptic = 3.0 % v/v

It implies that, 3ml  H2O2 is present in 100 ml of solution.

Therefore, to calculate the amount of H202 in 400.0 mL bottle of solution;

we have;

 (3.0 mL/ 100 mL) × 400 mL

= 12 mL H202

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