Along with the PH Scale, There Is the POH Scale

question 11

Multiple Choice

Along with the pH scale, there is the pOH scale, which indicates the level of "basicity" in a solution. Accordingly, pOH = -log[OH^-]. What is the sum of the pH and the pOH of a solution always equal to?

• A) the negative of the product of the hydronium and hydroxide ions
• B) the negative log of , which is 14
• C) The sum would equal 7, since that would be neutral for pH and pOH.
• D) It is not constant because it depends on the acid/base solution in question.

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Definitions:

Net Present Value

The difference between the present value of cash inflows and the present value of cash outflows over a period of time, used in capital budgeting to analyze the profitability of an investment.

Profitability Index

A financial tool used to evaluate the desirability of an investment, calculated as the present value of future cash flows divided by the initial investment.

Net Cash Flow

The variance between the cash coming into and going out of a business within a given timeframe.

Discount Rate

The interest rate used to discount future cash flows to their present value, enabling comparison of the value of investments made at different times.