Chapter 9: Q4TY (page 198)

Find $[OCI 2] / [HOCI]$ if pH is raised by one unit to 7.20.

Short Answer

Expert verified

The ratio $[{OCI}^{-}] / [HOCI]$ of with given Ph is $0.47$

Step by step solution

Define the Henderson-Hasselbalch Equation.

The Henderson-Hasselbalch equation describes the link between acid pH and pKa in aqueous solutions (acid dissociation constant). When the concentrations of the acid and its conjugate base, or the base and the corresponding conjugate acid, are known, this equation can be used to predict the pH of a buffer solution.

Calculate the ratio of [OCI-]/[HOCI]with given Ph

Buffer solution is a combination of a weak acid and its conjugate base or a weak base and its conjugate acid.

$pH 6.20 HOCI ? ? H^{+} + {OCI}^{-} pH = {pK}_{a} + \log \frac{[{OCI}^{- 1}}{[HOCI]} 7.20 = 7.53 + \log \frac{[{OCI}^{- 1}]}{[HOCI]} 0.33 = \log \frac{[{OCI}^{- 1}}{[{HOCI}^{- 1}} By taking antilog of 0.33 0.33 = \log \frac{[{OCI}^{- 1}}{[{HOCI}^{- 1}} \frac{[{OCI}^{- 1}]}{[HOCI]} = 0.47$

Thus, the ratio of $[{OCI}^{- 1}] / [HOCI]$ with given Ph is $0.47$

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Find $[OCI 2] / [HOCI]$ if pH is raised by one unit to 7.20.

Short Answer

Step by step solution

Define the Henderson-Hasselbalch Equation.

Calculate the ratio of [OCI-]/[HOCI]with given Ph

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Find [OCI2]/[HOCI]if pH is raised by one unit to 7.20.

Short Answer

Step by step solution

Define the Henderson-Hasselbalch Equation.

Calculate the ratio of [OCI-]/[HOCI]with given Ph

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Nuclear Chemistry

Making Measurements

Physical Chemistry

Kinetics

Inorganic Chemistry

The Earths Atmosphere

Study anywhere. Anytime. Across all devices.

Find $[OCI 2] / [HOCI]$ if pH is raised by one unit to 7.20.