You Have 500

question 82

Multiple Choice

You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH₃COOH) and 0.20 M sodium acetate (CH₃COONa) .What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [K_a = 1.8 × 10^-5]

• A)4.65
• B)4.71
• C)4.56
• D)4.84
• E)5.07

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Definitions:

Simple Interest

Interest earned only on the original principal amount invested.

Annually Compounded Interest

Interest on a loan or investment that is calculated once a year, adding the interest to the principal sum and basing future interest calculations on this new principal.

Amortized Daily Interest

Interest on a loan computed each day using the balance of the loan on that day, leading to a variable interest charge per billing period.

Discount Rate

In discounted cash flow analysis, this rate is crucial for the evaluation of the present value of cash flows anticipated in the future.