Lab Results: mass of empty crucible (g) 88.000g mass of cruciblewith malachite (g) 98.000g mass of crucible and contents after thereaction (g) 95.195g

Data Analysis: 1) What is the stoichiometric ratio between thenumber of moles of copper (II) oxide produced in the reaction andmalachite? The molar mass of malachite is 221.1 g/mol and the molarmass of copper (II) oxide is 79.55 g/mol. To calculate the mass ofmalachite, use the data you recorded using the balance.

2) Predict the mass of CuO expected from the decomposition ofthe malachite, based on the balanced equation and the mass ofmalachite used in this experiment. The molar mass of malachite is221.1 g/mol and the molar mass of CuO is 79.55 g/mol.

3) Calculate the percent error in the experiment using theexperimental mass of CuO and the theoretical mass of CuO. Thepercent error is defined as follows.?

Conclusions: 4) What does your percent error indicate about theexperiment? What are possible sources of error in thisexperiment?

5) Similar to malachite, copper (II) carbonate decomposes toform copper (II) oxide and carbon dioxide. Given the data in thetable below, how many moles of copper (II) oxide were formed in thereaction. The molar mass of copper (II) oxide is 74.55 g/mol. massof empty crucible (g) 72.000 mass of crucible with copper (II)carbonate (g) 77.000 mass of crucible and contents after thereaction (g) 75.219