What is the concentration of HCl in the final solution when 65 mL of a 9.0 M HCl solution is diluted with pure water to a total volume of 0.15 L? A) 2.1 × 10^-2 M B) 3.9 M C) 21 M D) 3.9 × 10³ M

Question

Quizplus · Accepted Answer

We can use the formula for dilution:

M1V1 = M2V2

where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume.

Plugging in the values, we get:

(9.0 M)(65 mL) = M2(150 mL)

Solving for M2, we get:

M2 = (9.0 M)(65 mL) / (150 mL)

M2 = 3.9 M

Therefore, the concentration of HCl in the final solution is 3.9 M.

The answer is B.

What Is the Concentration of HCl in the Final Solution