A Buffer Is 0

question 36

Multiple Choice

A buffer is 0.282 M C₆H₅COOH(aq) and 0.282 M Na(C₆H₅COO) (aq) . Calculate the pH after the addition of 0.150 moles of nitric acid to 1.0 L of the buffer. For C₆H₅COOH, pKa = 4.20.

• A) 3.69
• B) 4.20
• C) 4.71
• D) 3.87

Grasp the implications of the Flynn effect and the necessity for recalibrating intelligence tests.

Understand the concepts of fluid and crystallized intelligence and their relevance to age-related cognitive changes.

Understand the calculation methods for inventory purchases based on sales projections and purchase price percentages.

Comprehend the dynamics of cash flow management, including cash inflows from sales and cash outflows from expenses.

---

Definitions:

Effectiveness

The degree to which objectives are achieved and the extent to which targeted problems are solved.

Liquidity

A measure of the ease with which an asset can be converted into cash without significantly affecting its value.

Solvency

The ability of a company or individual to meet long-term financial obligations, indicating they possess more assets than liabilities over the long term.

Profitability

A measure of the efficiency and effectiveness of a company in generating profit from its operations.