\( t \) (i) How much diluent (in milliliters) must be added to prepare a 500,000 units \( / \mathrm{mL} \) strength? \( \square \) mL eBook

To determine how much diluent must be added to prepare a 500,000 units/mL strength, we need to know the concentration of the diluent and the desired final concentration. Let's assume the concentration of the diluent is \( C \) units/mL and the desired final concentration is 500,000 units/mL. The formula to calculate the amount of diluent to be added is: \[ \text{Amount of diluent} = \frac{\text{Desired final concentration} - \text{Initial concentration}}{\text{Concentration of diluent}} \] Given: - Desired final concentration = 500,000 units/mL - Initial concentration = 0 units/mL (assuming the diluent is added to a solution with no initial concentration) We need to find the concentration of the diluent (\( C \)). Let's denote the amount of diluent to be added as \( x \) mL. The formula becomes: \[ x = \frac{500,000 - 0}{C} \] To find the concentration of the diluent, we need more information about the initial concentration of the solution or the concentration of the diluent. Please provide the initial concentration of the solution or the concentration of the diluent to proceed with the calculation.