Starting at #1. Using stoichiometry and the reaction equation, calculate the weight of the product theroretically obtainable from the starting weight of CuSO4â¢5H2O.
#2. Compare this theoretical weight to the experimental weight obtained in part A above.
#3. Are both the theoretical and experimental weights of the product the same? If not calculate the % error of your experimental weight compared to the theoretical weight.
#4. Give reasons why both weights are not the same
#5 Calculate the % product in the original CuSO4â¢5H2O sample
#6. Calculate the mass of water produced
#7. Calculate the percnt of H2O sample
#8. Does the % H2O agree with the theoretical % H2O indicated by the formula CuSO4â¢5H2O?
C. Tabulate your results clearly
23 2. Obtain asample of CuSOSH2O from your tray or instructor. Weigh, to±0001g1.500 g-sample on a weighing paper. 3. Weigh an empty evaporating dish on the same balance. 4. Place the weighed sample in an evaporating dish and heat vigorously on a hot plate. Note any color change 5. Stop heating after $.10 minutes of vigorous heating. Let the product and the dish cool. 6-weigh the new âcold" dish and its contents. 7. Repeat steps 5-6 until successive weights of dish plus sample give the same results. 8. After successive weight agreement record this weight. 9. Using the weight of the empty evaporating dish calculate the weight of the product 10. Proceed to A. Data acquisition: 1. Wt of evaporating dish 31.410 2. Wt of evaporating dish + Cuso,sHo 38. 912 3. Wt of Cuso, product after heating.78 B. Calculations 1. Using stoichiometry and the reaction equation, caleulate the weight of product theoretically obtainable from the starting weight of Cuso,5 H,0. Compare this theoretical weight to the experimental weight obtained in part A above. Are both the theoretical and experimental weights of the products the same? If not calculate 2. 3. the % error of your experimental weight compared to the theoretical weight Give reasons why both weights are not the same. Calculate the % product in the original CuSO-SHO sample. Calculate the mass of water produced Calculate the % of H2O in the sample. Does the % H,O agree with the theoretical % H2O indicated by the formula aso,5%ã 4. 5. 6. 8. C. Tabulate your results clearly.
