a) Balance the equation for the reaction below. Al +_CuCl2 > _AICI, + Cu b) In the space provided, indicate the order of the procedures to complete the experiment. Rinse the copper precipitate with water. Use graduated cylinder to measure 100mL of CuCl2. After the reaction occurs, pour the products into funnel and filter paper to filter out solid copper. Use the digital scale to determine mass of filter paper. Weigh aluminum using digital scale. Calculate the number of grams of aluminum needed to produce 1.7 grams of Cu. Use scale to determine the mass of the copper and the filter paper. Subtract mass of filter paper to find total mass of copper produced. Use stirring rod to stir aluminum and CuC2 until all of the aluminum reacts. Add aluminum to CuC2 solution. Dry copper overnight.
a) Balance the equation for the reaction below. Al +_CuCl2 > _AICI, + Cu b) In the space provided, indicate the order of the procedures to complete the experiment. Rinse the copper precipitate with water. Use graduated cylinder to measure 100mL of CuCl2. After the reaction occurs, pour the products into funnel and filter paper to filter out solid copper. Use the digital scale to determine mass of filter paper. Weigh aluminum using digital scale. Calculate the number of grams of aluminum needed to produce 1.7 grams of Cu. Use scale to determine the mass of the copper and the filter paper. Subtract mass of filter paper to find total mass of copper produced. Use stirring rod to stir aluminum and CuC2 until all of the aluminum reacts. Add aluminum to CuC2 solution. Dry copper overnight.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
An experiment is to be performed to produce 1.7g of copper using aluminum foil and copper (II) chloride as reactants.
Transcribed Image Text:An experiment is to be performed to produce 1.7g of copper using aluminum foil and
copper (II) chloride as reactants. The equipment shown below is available for the
experiment.
Materials:
Beaker
Funnel
Filter Paper
Scale
Graduated Cylinder
Stirring Rod
Aluminum foil (AI) CuCla
a) Balance the equation for the reaction below.
Al +_CuCl2 >
AICls
b) In the space provided, indicate the order of the procedures to complete the experiment.
Rinse the copper precipitate with water.
Use graduated cylinder to measure 100mL of CuCla.
After the reaction occurs, pour the products into funnel and filter paper
to filter out solid copper.
Use the digital scale to determine mass of filter paper.
Weigh aluminum using digital scale.
Calculate the number of grams of aluminum needed to produce 1.7
grams of Cu.
Use scale to determine the mass of the copper and the filter paper.
Subtract mass of filter paper to find total mass of copper produced.
Use stirring rod to stir aluminum and CuCl2 until all of the aluminum
reacts.
Add aluminum to CuCl2 solution.
Dry copper overnight.
Transcribed Image Text:c. Indicate errors that would cause the final mass to be greater than expected.
Used more than 100 mL of CuCl2.
Did not rinse Cu precipitate.
Used less Al then the amount calculated.
Product not dried completely.
4. In relation to number 3, how would these errors affect the percent yield in the
experiment?
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