Which of the Following Mixtures Gives a Buffer with a PH

question 61

Multiple Choice

Which of the following mixtures gives a buffer with a pH less than 7.0? For acetic acid, K_a = 1.8 * 10^-5 and for NH₃,K_b = 1.8 *10 ^-5.

• A) 10 mL of 0.1 M NH₃(aq) + 10 ml of 0.1 M HCl(aq)
• B) 10 mL of 0.1 M aqueous acetic acid + 5.0 mL of 0.1 M NaOH(aq)
• C) 10 mL of 0.1 M aqueous acetic acid + 10 mL of 0.1 M NaOH(aq)
• D) 10 mL of 0.1 M aqueous acetic acid + 10 mL 0f 0.1 M NH₃(aq)
• E) 10 mL of 0.1 M NH₃(aq) + 5.0 mL of 0.1 M HCl(aq)

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Definitions:

Per-Worker Production Function

A mathematical function that represents output per worker as a function of capital per worker or other inputs.

Labor Productivity

This term refers to the amount of goods and services produced per hour worked, indicating the efficiency of labor in the economy.

Per-Worker Production Function

A measure of the relationship between the average output produced by each worker and the inputs used in production.

Capital Per Worker

The average amount of capital (tools, machinery, etc.) available for each employee in the production process.