The PH of a 2

question 50

Multiple Choice

The pH of a 2.1 × 10^-3 M solution of a weak base is 9.87. Calculate K_b for this base.

• A) 2.6 × 10^-6
• B) 1.2 × 10^-4
• C) 6.4 × 10^-8
• D) 8.7 × 10^-18
• E) none of these

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Definitions:

NonSampling Error

Errors that occur during data collection or processing but are not related to the act of selecting a sample from the population.

Cluster Sampling

A sampling technique where the population is divided into clusters, and a sample of these clusters is randomly selected for study.

Sampling Method

Techniques or strategies used to select a representative subset of observations from a population for the purpose of statistical analysis.

Wild Berry Shampoo

A hair-care product infused with the extracts of various wild berries, known for its aromatic properties and potential benefits to hair health.