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The chemical analysis of a water indicates the presence of cations in the following concentrations: Na+ 53 mg/L Mg2+36 mg/L K+ 72 mg/L Fe2+ 98 mg/L Mn2+15 mg/L A local softening company advertises that its softening unit has a capacity of 1000 meq. If water is used at the rate of 15 m³ per day, how frequently (i.e. how many times) will the unit have to be regenerated to provide the householder with soft water? (Na = 23, Mg = 24.4, K = 39, Fe = 55.85, Mn = 54.94 gms/mole) Answer: 105 Check

The chemical analysis of a water indicates the presence of cations in the following concentrations: Na+ 53 mg/L Mg2+36 mg/L K+ 72 mg/L Fe2+ 98 mg/L Mn2+15 mg/L A local softening company advertises that its softening unit has a capacity of 1000 meq. If water is used at the rate of 15 m³ per day, how frequently (i.e. how many times) will the unit have to be regenerated to provide the householder with soft water? (Na = 23, Mg = 24.4, K = 39, Fe = 55.85, Mn = 54.94 gms/mole) Answer: 105 Check

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...
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The chemical analysis of a water indicates the presence of cations in the following concentrations: Na+ 53 mg/L Mg2+36 mg/L K+ 72 mg/L Fe2+ 98 mg/L Mn2+15 mg/L A local softening company advertises that its softening unit has a capacity of 1000 meq. If water is used at the rate of 15 m³ per day, how frequently (i.e. how many times) will the unit have to be regenerated to provide the householder with soft water? (Na = 23, Mg = 24.4, K = 39, Fe = 55.85, Mn = 54.94 gms/mole) Answer: 105 Check
Transcribed Image Text:The chemical analysis of a water indicates the presence of cations in the following concentrations: Na+ 53 mg/L Mg2+36 mg/L K+ 72 mg/L Fe2+ 98 mg/L Mn2+15 mg/L A local softening company advertises that its softening unit has a capacity of 1000 meq. If water is used at the rate of 15 m³ per day, how frequently (i.e. how many times) will the unit have to be regenerated to provide the householder with soft water? (Na = 23, Mg = 24.4, K = 39, Fe = 55.85, Mn = 54.94 gms/mole) Answer: 105 Check
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