What is the concentration of HCl in the final solution when 65 mL of a 6.0 M HCl solution is diluted with pure water to a total volume of 0.15 L? A)1.4 × 10^-2 M B)2.6 M C)14 M D)2.6 × 10³ M

Question

Quizplus · Accepted Answer

First, we need to calculate the number of moles of HCl present in the original solution:

moles HCl = concentration x volume
moles HCl = 6.0 M x 0.065 L
moles HCl = 0.39 mol

When this solution is diluted to a total volume of 0.15 L, the final concentration can be calculated as:

final concentration = moles HCl / total volume
final concentration = 0.39 mol / 0.15 L
final concentration = 2.6 M

Therefore, the correct answer is B, 2.6 M.

What Is the Concentration of HCl in the Final Solution