1) Hendrix Lake is a small freshwater lake in Oklahoma. Water collected from thi

Question

1) Hendrix Lake is a small freshwater lake in Oklahoma. Water collected from this watershed had the following chemical composition: Ca2+ = 1.7 mg/L; Mg2+ = 0.4 mg/L Na+ = 0.9 mg/L K+ = 0.3 mg/L; Cl- = 0.55 mg/L SO42- = 6.3 mg/L HCO3- = 0.9 mg/L SiO2 (aq) = 4.5 mg/L; pH = 4.9 TDS = 19 mg/L a) Calculate the concentrations of the ionic species in mol/L b) Calculate the negative and positive charge. Do the charges balance, i.e., does the total positive charge equal the negative charge? c) Calculate the activity coefficients for Ca2+ and SO42- at 25

Explanation / Answer

Arizona Department of Environmental Quality (ADEQ) Water Quality Division, the .... Figure 2-14 Results of Nutrient and Organics Risk Analysis ... Table 1-3 San Pedro Watershed Major Lakes and Streams ... collected for this plan. ... watershed has witnessed the ebb and flow ..... contained a large freshwater lake between ..

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