The waste acid from a nitrating process contain 55% H2SO4, 20% HNO3and 25% H2O by weight. The acid is to be concentrated to contain 60% H2SO4 and 26% HNO3 by addition of concentrated sulphuric acid containing 95% H2SO4 and concentrated nitric acid containing 90% HNO3 (by wt.). Calculate the quantities of three acids to be mixed to get 1000 kg of desired mixed acid.

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Introduction and Basic Calculations in Multiphase Systems

Chemical calculations involve material and energy balance calculations which enable engineers to calculate material and energy requirements in various chemical processes. In addition to this, chemical calculations help to study the behavior and properties of gases, liquids, and their mixtures.