Suppose that 3.50 g of potassium chromate is added to 75.0 ml of 0.250 M magnesium nitrate. 1. What will be the initial molar concentration of potassium chromate (194.19 g/mol) in the solution? 2.40 M 2.40 x 10-3 M 0.0240 M 2.40 x 10-4 M None of Choices 2. What mass of potassium ions (39.10 g/mol) is present in the solution? 0.705 g None of the choices 141 g 1.41 g 7.05 g 3. What precipitate will be formed? KNO3 MgCrO4 K2NO3 Mg2CrO4

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