Calculate the PH of a Buffer Solution Prepared by Dissolving

question 96

Multiple Choice

Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of sodium cyanate (NaCNO) and 1.0 mole of cyanic acid (HCNO) in enough water to make 1.0 liter of solution.[K_a(HCNO) = 2.0 * 10^-4]

• A)0
• B)3.0
• C)3.7
• D)4.4
• E)5.0

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Definitions:

Empirical Reasoning

Making conclusions based on observed evidence, often used in the scientific method to form hypotheses and draw conclusions.

Null Hypothesis

The null hypothesis is a default position that there is no difference or effect, used as a starting point for statistical significance testing.

Critical Thinking

The ability to think clearly and rationally, understanding the logical connection between ideas and critically evaluating arguments.

Scientific Inquiry

A systematic process used to investigate phenomena, acquire new knowledge, or correct and integrate previous knowledge, based on empirical evidence and the scientific method.