The Buffer Capacity of a Solution May Be Defined as the Number

question 1

Multiple Choice

The buffer capacity of a solution may be defined as the number of moles of H+ that will change the pH of 1.00 L of the buffer by 1.00 pH units. What is the buffer capacity of a solution which is 0.10 M in acetic acid (Ka = 1.8 × 10^-5) and 0.30 M in sodium acetate, in units of mol (H+) per liter?

• A) 0.20
• B) 0.10
• C) 0.087
• D) 0.009
• E) zero

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Definitions:

Network Sampling

A technique used to sample from a network, where participants are selected based on their connections or relationships within the network.

Stratified Sampling

A method of sampling that involves dividing a population into subgroups and randomly selecting samples from each of these groups.

Convenience Sampling

A sampling technique where participants are selected based on their easy availability and proximity to the researcher, potentially introducing bias.

Quota Sampling

Sampling that attempts to replicate in a sample the features that the researcher thinks are important in the population.