When Preparing an Acetate Buffer at PH 4

question 17

Multiple Choice

When preparing an acetate buffer at pH 4.5 with 0.01 M solutions of acetic acid (pK_a = 4.8) and sodium acetate, the volume of acetic acid needed would be ____ the volume of sodium acetate solution.

• A) equal to
• B) less than half of
• C) more than half of
• D) about six times
• E) about twice

---

Definitions:

Equity Multiplier

A financial ratio that measures a company's total assets financed by its shareholders' equity, used to evaluate financial leverage.

Net Profit Margin

A profitability ratio calculated as net income divided by revenue, indicating how much profit a company makes with its total sales.

Gross Margin

The difference between revenue and cost of goods sold divided by revenue, expressed as a percentage.

Times Interest Earned

A ratio that measures a company's ability to meet its debt obligations, calculated by dividing earnings before interest and taxes by the interest expense.