Question

A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of the bottle is 31.0 mL, how many milliliters of active ingredients are in the bottle?

Answer 1

Answer:

The answer to your question is 1.55 ml

Explanation:

Data

Percent by volume = 5%

Total volume = 31 ml

Volume of solute = ?

Formula

Percent by volume = $\frac{Volume of solute}{volume of solution} x 100$

Solve for volume of solute

Volume of solute = $\frac{percent by volume x volume of solution}{100}$

Substitution

Volume of solute = $\frac{5 x 31}{100}$

Simplification

Volume of solute = 1.55 ml

Answer 2

Answer:

Total volume of the syrup is 31.0ml

% of active ingredient = 5% = 0.05

The volume of the activ ingredient in the syrup is 31*0.05 = 1.55ml