How many milliliters of 6. OM HCI are needed to prepare 150 mL of 0.65M HCI?

Dilution equation: M1 V1 = M2V2

Answer: V = 16.25 mL

Explanation: The dilution formula is expressed by the products of molarity and volume or M1V1 = M2V2. Derive the formula to find the initial volume.

V1 = M2V2 / M1

= 0.65 M (150 mL) / 6.0 M

= 16.25 mL

Cancel out the units of molarity so that the remaining unit is in mL.