Which Combination Would Make the MOST Effective Buffer Solution

question 15

Multiple Choice

Which combination would make the MOST effective buffer solution?

• A) 0.1 M H₂CO₃ and 1.0 M NaHCO₃
• B) 0.1 M H₂CO₃ and 0.1 M NaHCO₃
• C) 0.1 M H₂CO₃ and 2.0 M NaHCO₃
• D) 0.15 M H₂CO₃ and 0.015 M NaHCO₃

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Definitions:

Principal

The original sum of money borrowed in a loan, or the initial amount of investment, excluding interest or profit.

Ordinary Simple Interest

Interest calculated on the principal amount only, without compounding, over a specific period.

360-Day Year

An accounting convention used for interest calculations where the year is simplified to 360 days to ease the computation process.

Exact Simple Interest

Interest calculated on the principal amount of a loan or investment, considering the exact number of days in the interest period.