35ml of active ingredient is mixed with distilled water to total 300ml. What is the final concentration (v/v)? ____
To find the final concentration (v/v), we need to calculate the ratio of the volume of active ingredient to the total volume of the solution, expressed as a percentage.
First, we need to calculate the volume of the active ingredient by adding up the volume of the active ingredient and the volume of distilled water given in the question:
Volume of active ingredient = 35 ml
Total volume of solution = 35 ml (active ingredient) + 300 ml (distilled water) = 335 ml
Next, we can calculate the concentration (v/v) using the formula:
Concentration (v/v) = (volume of active ingredient / total volume of solution) x 100%
Concentration (v/v) = (35 ml / 335 ml) x 100%
Concentration (v/v) = 10.4485%
Therefore, the final concentration (v/v) is approximately 10.4485%.