Calculate the PH of a Buffer Solution Prepared by Dissolving

question 130

Multiple Choice

Calculate the pH of a buffer solution prepared by dissolving 0.2 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:

Primary Mental Abilities

According to Thurstone, seven relatively distinct capabilities that singly or in combination are involved in all intellectual activities.

Charles Spearman

A British psychologist who contributed to the development of factor analysis and the concept of general intelligence, represented as the "g" factor.

Louis Thurstone

An influential psychologist best known for his contributions to psychometrics and the theory of multiple intelligences.

Howard Gardner

An American developmental psychologist best known for his theory of multiple intelligences, which suggests that there are several types of intelligence that are distinct from each other.