Final answer:
The percentage yield of copper can be calculated using the formula: Percentage yield = (actual yield / theoretical yield) x 100%. In this case, the mass of copper obtained experimentally was 0.872 g. The theoretical yield of copper was also found to be 0.872 g. Therefore, the percentage yield of copper is 100%.
Step-by-step explanation:
The percentage yield of copper can be calculated using the formula:
Percentage yield = (actual yield / theoretical yield) x 100%
In this case, the mass of copper obtained experimentally is 0.872 g. To determine the theoretical yield, we need to calculate the initial amount of copper sulfate (CuSO4) based on the mass. For this, we can use the molar mass of CuSO4, which is 159.62 g/mol.
Then, we can use the molar ratios from the balanced equation to calculate the theoretical yield of copper. The balanced equation is:
2CuSO4 + 2Zn → 2Cu + 2ZnSO4
From the equation, we can see that the molar ratio between copper sulfate and copper is 2:2. Therefore, the theoretical yield of copper is the same as the initial amount of copper sulfate.
So, the theoretical yield of copper is 0.872 g.
To calculate the percentage yield, we can substitute the values into the formula:
Percentage yield = (0.872 g / 0.872 g) x 100% = 100%