The minimum pressure required to purify the water by osmosis process to be calculated. Concept introduction Desalination: Desalination is the action of removing salts that are dissolved in the water. Resulting, obtain pure water from seawater. Osmosis: Osmosis is the process in which solvent molecule enter from low concentration into high concentration through semi permeable membrane. Reverse osmosis: Reverse osmosis is water purification technique in which ions or molecule or larger molecules are removed by using semi permeable membrane.

Question

A solution contains 0.097 M Ce3+, 1.55x10-3 M Ce4+, 1.55x10-3 M Mn2+, 0.097 M MnO4-, and 1.00 M HClO4 (F= 9.649 x 104 C/mol). a) Write a balanced net reaction that can occur between species in this solution. b) Calculate deltaG0 and K for the reaction. c) Calculate E and deltaG for the conditions given. Ce4+ + e- = Ce3+ E0= 1.70 V MnO4- + 8H+ + 5e- = Mn2+ + 4H2O E0= 1.507 V

Answer 1

Question

Chapter 11, Problem 88E

Interpretation Introduction

Interpretation: The minimum pressure required to purify the water by osmosis process to be calculated.

Concept introduction

Desalination: Desalination is the action of removing salts that are dissolved in the water. Resulting, obtain pure water from seawater.

Osmosis: Osmosis is the process in which solvent molecule enter from low concentration into high concentration through semi permeable membrane.

Reverse osmosis: Reverse osmosis is water purification technique in which ions or molecule or larger molecules are removed by using semi permeable membrane.

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A solution contains 0.097 M Ce3+, 1.55x10-3 M Ce4+, 1.55x10-3 M Mn2+, 0.097 M MnO4-, and 1.00 M HClO4 (F= 9.649 x 104 C/mol). a) Write a balanced net reaction that can occur between species in this solution. b) Calculate deltaG0 and K for the reaction. c) Calculate E and deltaG for the conditions given. Ce4+ + e- = Ce3+ E0= 1.70 V MnO4- + 8H+ + 5e- = Mn2+ + 4H2O E0= 1.507 V

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