A Sample Contains Ba₃(PO₄)₂, CdS, AgCl, NH₄Cl, and ZnS

question 138

Multiple Choice

A sample contains Ba₃(PO₄) ₂, CdS, AgCl, NH₄Cl, and ZnS. Identify the soluble salt remaining in the solution after the addition of 6 mol L^-1 HCl, followed by the addition of H₂S and 0.2 mol L^-1 HCl, then the addition of OH^- to a pH of 8, and finally the addition of (NH₄) ₂HPO₄ with NH₃.

• A) Ba₃(PO₄)₂
• B) CdS
• C) AgCl
• D) NH₄Cl
• E) ZnS

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Definitions:

Macaulay Duration

A measure of the weighted average time until a bond or fixed income portfolio's cash flows are received, used to gauge interest rate sensitivity.

Yield

The income returned on an investment, such as the interest or dividends received, typically expressed as a percentage of the investment’s cost or current market value.

Modified Duration

Modified Duration measures the sensitivity of the price of a bond or other debt instrument to a change in interest rates, indicating the percentage change in price for a parallel shift in rates.

Modified Duration

A measure of the sensitivity of a bond's or bond portfolio's price to changes in interest rates, adjusting for the changing yield to maturity.