The spent acid from a nitrating process contains 33% H2SO4, 36% HNO3 and 31% H2O byweight. This acid is to be strengthened by addition of concentrated sulphuric acid containing95 % H2SO4 and concentrated nitric acid containing 78 % HNO3. The strengthened mixedacid is to contain 40 % H2SO4 and 43 % HNO3. Calculate the quantities of spent andconcentrated acids that should be mixed together to yield 1500 kg of the desired mixed acid. Q.2 The spent acid from a nitrating process contains 33% H2SO4, 36% HNO3 and 31% H2O byweight. This acid is to be strengthened by addition of concentrated sulphuric acid containing95 % H2SO4 and concentrated nitric acid containing 78 % HNO3. The strengthened mixedacid is to contain 40 % H2SO4 and 43 % HNO3. Calculate the quantities of spent andconcentrated acids that should be mixed together to yield 1500 kg of the desired mixed acid.

Answered: The spent acid from a nitrating process…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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The spent acid from a nitrating process contains 33% H2SO4, 36% HNO3 and 31% H2O by
weight. This acid is to be strengthened by addition of concentrated sulphuric acid containing
95 % H2SO4 and concentrated nitric acid containing 78 % HNO3. The strengthened mixed
acid is to contain 40 % H2SO4 and 43 % HNO3. Calculate the quantities of spent and
concentrated acids that should be mixed together to yield 1500 kg of the desired mixed acid.