Question

What is the percent yield of NaCI if 31.0 g of CuCI2 reacts with excess NaNO3 to produce 21.2 g of NaCI?

Answer 1

To calculate the percent yield of NaCI, divide the actual yield by the theoretical yield and multiply by 100. The theoretical yield can be calculated using the moles of CuCI2 and the stoichiometry of the balanced equation.

Step-by-step explanation:

To calculate the percent yield, we need to compare the actual yield (the amount of NaCI that was produced, which is 21.2 g) to the theoretical yield (the amount of NaCI that would be produced if the reaction went to completion). The theoretical yield can be calculated by determining the moles of CuCI2 and converting it to moles of NaCI using the stoichiometry of the balanced equation. Then, we can use the molar mass of NaCI to convert the moles of NaCI to grams. Finally, we can calculate the percent yield by dividing the actual yield by the theoretical yield and multiplying by 100.
Step 1: Calculate the moles of CuCI2. To do this, divide the mass of CuCI2 by its molar mass.
Step 2: Use the stoichiometry of the balanced equation to convert moles of CuCI2 to moles of NaCI.
Step 3: Convert moles of NaCI to grams of NaCI by multiplying by the molar mass of NaCI.
Step 4: Calculate the percent yield by dividing the actual yield by the theoretical yield and multiplying by 100.