In the Following Reaction: HBr ⇌ H⁺ + Br^-

question 7

Multiple Choice

In the following reaction: HBr ⇌ H⁺ + Br^- , what is the pH value if [HBr] = 0.120 M and K = 1 × 10^-8?

• A)3.46
• B)4.46
• C)0.45
• D)1.20

---

Definitions:

Descriptive Statistics

Statistical methods that summarize and organize the characteristics of a dataset, including measures like mean, median, mode, and standard deviation.

Range

The difference between the highest and lowest scores in a set of data, indicating the spread of scores.

p < .05

A statistical term indicating that the probability of the observed data, or more extreme, if the null hypothesis were true, is less than 5%, often used as a threshold for statistical significance.

Experimental Group

In research, a group of subjects who receive the treatment or variable being tested for its effect.