Purchase Solution

Calculate Fraction of Cyanide Existing as the Anion

Not what you're looking for?

Ask Custom Question

For HCN in water, Ka = 2.0E-10. Calculate the fraction of cyanide that exists as the anion rather than in the molecular form at pH values of 4, 7, and 10.

Purchase this Solution

Solution Summary

The solution explains which area of chemistry this question pertains to and provides an equation that can find the fraction of cyanide existing at the anion (as opposed to in molecular form) at all three pH levels specified.

Solution Preview

This is a question on buffers. The equation Ka = [H+] * [CN-]/[HCN] will work here.

You are given ...

Purchase this Solution

Free BrainMass Quizzes
Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.


The quiz helps in revising basic concepts about thermochemistry.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.