A 015 M Aqueous Solution of the Weak Acid HA at at 25.0

question 9

Multiple Choice

A 0.15 M aqueous solution of the weak acid HA at 25.0 °C has a pH of 5.35. The value of K_a for HA is ________.

• A)3.0 × 10^-5
• B)1.8 × 10^-5
• C)7.1 × 10^-9
• D)1.3 × 10^-10
• E)3.3 × 10⁴

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Definitions:

Net Income

The net income of a company following the deduction of all taxes and expenses from the gross revenue.

Cash Payback Period

The period of time required for the return on an investment to "pay back" the sum of the original investment.

Amortization Period

The length of time over which an intangible asset is depreciated or an amount of money is amortized, typically reflecting the asset's useful life.

Net Cash Flows

is the total amount of money being transferred into and out of a business, indicating its financial health.