A solution is prepared at 25 °c that is initially 0.21M in nitrous acid (HNO,), aweak acid with K,=4.5 x 10 4, and 0.43M in potassium nitrite (KNO,). Calculatethe pH of the solution. Round your answer to 2 decimal places.pH =?

Buffer solution is calculated by using Henderson Hassel balch equation

Answered: Is prepareu at 25 IS hilialy 0.21M weak…

Is prepareu at 25 IS hilialy 0.21M weak acid with K̟=4.5 × 10, and 0.43M in potassium nitrite (KNO,). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = 0

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 7ALQ

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Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

A solution is prepared at 25 °c that is initially 0.21M in nitrous acid (HNO,), a
weak acid with K,=4.5 x 10 4, and 0.43M in potassium nitrite (KNO,). Calculate
the pH of the solution. Round your answer to 2 decimal places.
pH =
?

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