lab 11

Limiting Reactant and Excess Reactant Please write your answers in another color other than black OR highlight answers at the end 1. EXPERIMENT 1: What happened when you added test solution to the test tube filled with only copper(II) sulfate solution? Turned deep blue 2. EXPERIMENT 1: What happened when you added test solution to the test tube filled with only sodium sulfide solution? Cleared up and created white precipitation 3. EXPERIMENT 2: Fill in the table below with the results from your experiment. Reagent Ratio Color of Supernatant and Test Solution Reagent in Excess Mass Test Tube Plus Precipitate (g) 5 mL CuSO 4 : 1 mL Na 2 S blue CuSO4 25.010 4 mL CuSO 4 : 2 mL Na 2 S blue CuSO4 25.010 3 mL CuSO 4 : 3 mL Na 2 S No color or precipitation none 25. 039 2 mL CuSO 4 : 4 mL Na 2 S No color with precipitation Na2s 25.019 1 mL CuSO 4 : 5 mL Na 2 S No color with precipitation Na2S 25.010 4. EXPERIMENT 2: Which test tube had the largest amount of precipitate? Record the ratio of CuSO4 to Na2S used. What is indicated by the maximum amount of