An Aliquot (28

question 79

Multiple Choice

An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample?

• A) 1.6
• B) 0.21
• C) 7.2
• D) 0.17
• E) 0.42

---

Definitions:

Sample Size

Sample size refers to the number of observations or data points collected in a sample from a population for the purpose of statistical analysis.

Degrees of Freedom

Degrees of freedom refer to the number of independent values or quantities that can be assigned to a statistical distribution or to a system, minus the number of linearly independent constraints.

Chi-Squared Test

A statistical analysis conducted to assess whether there's a significant disparity between the anticipated frequencies and the actual frequencies across one or multiple categories.

P-Value

A measure that indicates the probability of observing the given data, or something more extreme, if the null hypothesis is true.