What is the pH of a solution made by mixing 30.00 mL of 0.10 M HCl with 40.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive.
A)0.85
B)1.85
C)12.15
D)13.15

Question

Quizplus · Accepted Answer

The reaction between HCl and KOH is a neutralization reaction, where HCl (a strong acid) reacts with KOH (a strong base) to form KCl (a salt) and H2O (water). The moles of HCl and KOH are equal (0.0030 mol each), so they will completely neutralize each other, resulting in a neutral solution (pH = 7). However, the calculation provided in the question leads to an incorrect conclusion. The correct pH after neutralization should be 7, assuming ideal behavior. The choices provided do not reflect this, indicating a possible mistake in the question or in the interpretation of the answer choices.

What Is the PH of a Solution Made by Mixing