6 questions ( for questions 1-3 Consider following test results obtained for a surface water sample)

lon Concentration (ppm) Ca2 36.0 Mg2+ 13.0 Na 10.0 K K 4.0 79.0 SO, 32.0 CI 14.0 NO: 11.0 1. Check the accuracy of the analytical measurements. Do you suspect that a constituent of significance has been neglected? If so, is it a cation or an anion? 2. Determine the mole fraction of calcium, magnesium, and sulfate for the water sample given above. 3. Determine this water's hardness and alkalinity in mg/L as CaCO3, assuming pH 7 and (CO2) is negligible. 4. A concentrated stock of acetic acid (CH,COOH) is determined to have 92% purity (w/w). If its specific gravity is 1.05, determine its molarity and normality. 5. Determine the concentration in ug/m2 of 1.2 ppm, trichloroethylene (TCE) (C2HCl) at 0C and 1 atm. 6. Determine the molecular weights and the equivalent weights of lime (CaO) and ferrous sulfate (FeSO4 7H20). arch BA lon Concentration (ppm) Ca2 36.0 Mg2+ 13.0 Na 10.0 K K 4.0 79.0 SO, 32.0 CI 14.0 NO: 11.0 1. Check the accuracy of the analytical measurements. Do you suspect that a constituent of significance has been neglected? If so, is it a cation or an anion? 2. Determine the mole fraction of calcium, magnesium, and sulfate for the water sample given above. 3. Determine this water's hardness and alkalinity in mg/L as CaCO3, assuming pH 7 and (CO2) is negligible. 4. A concentrated stock of acetic acid (CH,COOH) is determined to have 92% purity (w/w). If its specific gravity is 1.05, determine its molarity and normality. 5. Determine the concentration in ug/m2 of 1.2 ppm, trichloroethylene (TCE) (C2HCl) at 0C and 1 atm. 6. Determine the molecular weights and the equivalent weights of lime (CaO) and ferrous sulfate (FeSO4 7H20). arch BA