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To determine the concentration of SO42 ion in a sample of groundwater. 100.0mL of the sample is titrated with 0.0250MBa2(NO3)2. forming insoluble BaSO4. If 3.70mL

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To determine the concentration of SO42 ion in a sample of groundwater. 100.0mL of the sample is titrated with 0.0250MBa2(NO3)2. forming insoluble BaSO4. If 3.70mL of the Ba(NO2)2 solution is required to reach the end point of the titration, what is the (molar) cancentration of SO42 in the sample? 4

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