2. A natural water has the following partial analysis pH = 9.5 [HCO3] 3 x 10-3 M [CO2(aq)] = 3 x 10-6 M [Ca2+] = 5 × 10-4 M [Mg2+] = 1 x 104 M [SO4²] = 1 × 10-4 M (a) What volume of 0.02 N sulfuric acid is required to titrate a 100 ml sample to the total alkalinity endpoint? Please express your answer both in meq/L and mg/L as CaCO3? (10%) (b) A waste containing 0.01 mole NaOH/liter is to be discharged to this water system. The pH cannot be raised above 9.5. What is the maximum number of liters of waste that can be added to each liter of the natural water? (15%)

2. A natural water has the following partial analysis pH = 9.5 [HCO3] 3 x 10-3 M [CO2(aq)] = 3 x 10-6 M [Ca2+] = 5 × 10-4 M [Mg2+] = 1 x 104 M [SO4²] = 1 × 10-4 M (a) What volume of 0.02 N sulfuric acid is required to titrate a 100 ml sample to the total alkalinity endpoint? Please express your answer both in meq/L and mg/L as CaCO3? (10%) (b) A waste containing 0.01 mole NaOH/liter is to be discharged to this water system. The pH cannot be raised above 9.5. What is the maximum number of liters of waste that can be added to each liter of the natural water? (15%)

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.99QE: A scientist has synthesized a diprotic organic acid, H2A, with a molar mass of 124.0 g/mol. The acid...

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