Question

how many ml of water should you add to the 60 ml of concentrated solution to dilute it to a total of 150 ml? concentrated volume + water = dilute volume 60 ml + ? ml = 150 ml

Explanation:

Step1: Define the formula

Let \( x \) be the volume of water (in mL) to be added. The formula is \( 60 + x = 150 \).

Step2: Solve for \( x \)

Subtract 60 from both sides of the equation: \( x = 150 - 60 \).
Calculate the right - hand side: \( 150-60 = 90 \).

Answer:

90 mL