Hydrogen cyanide has the chemical formula HCN. The compound occurs as a colourless gas or a pale blue liquid. Its solution in water is called hydrocyanic acid. It reacts with water as per the reaction below. What is the pH of 0.176 mol/L solution of the above acid (K = 4.98 x 10' )? HCN(aq) + H2O(l) → CN¯(aq) + H2O+(aq) a

Chemistry: The Molecular Science
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Chapter14: Acids And Bases
Section: Chapter Questions
Problem 30QRT
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Hydrogen cyanide has the chemical formula HCN. The compound
occurs as a colourless gas or a pale blue liquid. Its solution in water is
called hydrocyanic acid. It reacts with water as per the reaction
below. What is the pH of 0.176 mol/L solution of the above acid (K =
4.98 x 10' )?
HCN(aq) + H2O(l) → CN¯(aq) + H2O+(aq)
a
Transcribed Image Text:Hydrogen cyanide has the chemical formula HCN. The compound occurs as a colourless gas or a pale blue liquid. Its solution in water is called hydrocyanic acid. It reacts with water as per the reaction below. What is the pH of 0.176 mol/L solution of the above acid (K = 4.98 x 10' )? HCN(aq) + H2O(l) → CN¯(aq) + H2O+(aq) a
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