1. ESE2401: WATER SCIENCE AND TECHNOLOGY SEMESTER 2, AY2014/15 TUTORIAL SESSION 7 TUTORIAL 4 SHI XUEQING ERISX@NUS.EDU.SG DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE

2. 1.4 – PROTON CONDITION (PROTON BALANCE)

3. 4.1 – GENERAL APPROACH 1.Define initial species present 2.Write possible equations (mass conservation, equilibrium, charge balance, proton condition) to relate species 3.Identify which species to solve for 4.Manipulate equations to obtain an equation in terms of the species 5.Solve for the species 6.Repeat 4 and 5 for other species

4. Q1

6. Q2

9. Q3