A Titration of 100

question 51

Multiple Choice

A titration of 100.0 mL of 1.00 M malonic acid (H₂A) was done with 1.00 M NaOH. For malonic acid, K_a1 = 1.49 × 10^-2, K_a2 = 2.03 × 10^-6.
-Calculate [H⁺] after 150.0 mL of 1.00 M NaOH has been added.

• A) 2.03 × 10^-6 M
• B) 1.41 × 10^-10 M
• C) 1.49 × 10^-2 M
• D) 1.00 × 10^-7 M
• E) none of these

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Definitions:

Experiment

A research method in which an investigator manipulates one or more factors (independent variables) to observe the effect on some behavior or mental process (the dependent variable). By random assignment of participants, the experimenter aims to control other relevant factors.

Experimentation

The process of conducting tests and trials to explore hypotheses, gather data, or demonstrate principles in controlled conditions.

Mental Process

Operations of the mind involving thinking, perceiving, remembering, and understanding, often influencing behavior.

Investigator

A person who carries out a systematic inquiry or study to discover facts or information.