What Is the PH of the Resulting Solution If 35

question 85

Multiple Choice

What is the pH of the resulting solution if 35 mL of 0.432 M methylamine,CH₃NH₂,is added to 15 mL of 0.234 M HCl? Assume that the volumes of the solutions are additive.K_a = 2.70 × 10^-11 for CH₃NH₃⁺.

• A) 2.91
• B) 3.95
• C) 10.05
• D) 11.09

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Definitions:

Probability

A measure of the likelihood that a particular event will occur, usually expressed as a number between 0 and 1.

Normal Distribution

A symmetrical, bell-shaped distribution of data in which most of the observations cluster around the central peak and the probabilities for values further away from the mean taper off equally in both directions.

Asymptotic

Referring to a line or curve that approaches a given curve arbitrarily closely, as one or both of the variables go to infinity.

Normal Curve

A symmetrical, bell-shaped curve representing the distribution of a set of data where most measurements are close to the average.