A 015 M Aqueous Solution of a Weak Acid Has a a Freezing

question 91

Multiple Choice

A 0.15 m aqueous solution of a weak acid has a freezing point of - 0.31 °C. What is the percent ionization of this weak acid at this concentration? The molal freezing- point- depression constant of water is 1.86 °C/m.

• A) 35
• B) 31
• C) 89
• D) 17
• E) 11

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