Question

Jill mixes 4 grams of vanilla extract into the 800 grams of cake batter's he has prepared. What is the concentration of vanilla in her "solution" of cake batter?

Answer 1

Answer: The concentration of vanilla extract in the solution is 0.50 % (m/m)

Explanation:

We are given:

Mass of vanilla extract (solute) = 4 grams

Mass of cake's batter (solvent) = 800 grams

Mass of solution = Mass of solute + Mass of solvent = 4 + 800 = 804 grams

To calculate the mass percentage (concentration) of vanilla extract in the solution, we use the equation:

$\text{Concentration of vanilla extract}=\frac{\text{Mass of vanilla extract}}{\text{Mass of solution}}\times 100$

Putting values in above equation, we get:

$\text{Concentration of vanilla extract}=\frac{4g}{804g}\times 100\\\\\text{Concentration of vanilla extract}=0.50\%$

Hence, the concentration of vanilla extract in the solution is 0.50 % (m/m)