Solution Stoichiometry ___Ba(NO3)2(aq) + ___Na2SO4(aq) → ___BaSO4(s) + ___NaNO3(aq) 1. Balance the above equation then use it to answer the questions below: 2. If 65mL of 0.75M barium nitrate is mixed with 70.0mL of 0.60M sodium sulfate, how many grams of the precipitate will form? 3. If 8.40 grams of solid actually form, calculate the % yield of the reaction. 4. How many mL of 0.95M barium nitrate are needed to make 101.0g of barium sulfate? Your turn to Practice! 1. 25.0 mL of 0.350 M Sodium hydroxide are added to 45.0 mL of 0.125 M Copper (II) sulfate. How many grams of the precipitate will form? 2. How many mL of 1.6M AgNO3 are needed to react exactly with 103mL of 0.930M barium iodide?
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