44. Solving a chemistry problem

44. Solving a chemistry problem

61. Based on the data in Table 4, write the precipitation reaction equations, calculate the amount of precipitant required for quantitative precipitation, and describe the precipitation conditions.
Table 4

Problem No. Test substance Precipitator
Formula Weight Formula Concentration
1 2 3 4 5
61 BaSO4 1.50 Na2SO4 0.05 M

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