2. Calculate the ratio of [HPO.]/ [H>PO4] that is needed to produce a buffer at:a) pH 7.40b) pH 7.60c) pH 7.20

Formula Used, pH=pKa + logsaltAcid pKa (H2PO4-) = 7.1 (taken from general values)

Answered: 2. Calculate the ratio of…

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Chemistry

2. Calculate the ratio of (HPO.]/[H>POs] that is needed to produce a buffer at: a) pH 7.40 b) pH 7.60 c) pH 7.20

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter25: Ph Measurements-buffers And Their Properties

Section: Chapter Questions

Problem 5ASA

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

2. Calculate the ratio of [HPO.]/ [H>PO4] that is needed to produce a buffer at:
a) pH 7.40
b) pH 7.60
c) pH 7.20

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