Lab: Limiting Reactant and Percent Yield Answers

Was this hypothesis supported in the lab?

During Trial 2, what allowed you to determine that aluminum was the limiting reactant? Check all that apply.

With this tool, the ✔ copperaluminumaluminum chloridewater could be

separated from the copperaluminum✔ aqueous solutioncopper(II) chloride.

Which tool was used to collect the solid product of the chemical reaction?

Burning a candle is a combustion reaction that uses wax and oxygen to produce carbon dioxide, water, and energy. When you burn a candle down in an open room, the limiting reactant is .

When you place a glass over a candle and the flame goes out, the limiting reactant is .

Label each of the descriptions below as theoretical yield, experimental yield, or both.Calculated based on the chemical equation: Measured directly: Determined experimentally: Determined using stoichiometry:

Measured directly:

Determined experimentally:

Determined using stoichiometry:

The percent yield of a chemical reaction is .

What could have accounted for a percent yield of less than 100% in this lab? Check all that apply.

The percent yield of a chemical reaction is valuable to many industries. Low percent yields can result in the loss of large amounts of money. Which of the following would likely increase the percent yield of a reaction? Check all that apply.