2. Write down the chemical reaction for the heating of the hydrated form of copper II sulfate. The triangle is the symbol for "heat added". _Cuso4 • SH20__→ _Cuso4, H20_ 3. Record the mass of the empty dish:__25.1 grams 4. Record the initial mass of the reactant and the dish:_29.2 grams 5. Make observations about the physical changes that the crystals are undergoing. As the copper sulfate heats up the color changes from blue to white. 6. Record the final mass of the crystals after heating and the dish:_27.7 grams 7. Calculate mass of Copper Sulfate initial mass and final mass in the Data Table. a Table: Calculations per Sulfate initial (make sure to 29.2 g – 25.1 g Mass (g) 4.1g tract out mass of empty dish) per Sulfate final (make sure to tract out mass of empty dish) ter 27.7- 25.1g 2.6 8 4.1 g – 2.6g 1.5 g lysis/Calculations (Be sure to show all work for each calculation): 1. Find the molar mass of the copper II sulfate, anhydrous form. 2. Find the molar mass of water. 3. Divide the final mass of the anhydrous salt by the molar mass of Cuso, to find the number of moles of CuSO4. 4. Subtract the final mass from the initial mass to find the amount of water that was lost through heating. Record this in the data table. 5. Divide the number of grams of water (Step #4) by the molar mass of water (Step #2) to find the number of moles of water. 6. Find the ratio of moles of anhydrous salt: moles of water by dividing the number of moles of water (Step #5) by the number of moles of anhydrous salt (Step #3). This is the value of "x" in the hydrate. 7. Express the hydrate with the correct value for "x". Note: "X" should be a whole number! If you did not calculate a whole number, you need to go back and find your error. Cuso, • xH;0
2. Write down the chemical reaction for the heating of the hydrated form of copper II sulfate. The triangle is the symbol for "heat added". _Cuso4 • SH20__→ _Cuso4, H20_ 3. Record the mass of the empty dish:__25.1 grams 4. Record the initial mass of the reactant and the dish:_29.2 grams 5. Make observations about the physical changes that the crystals are undergoing. As the copper sulfate heats up the color changes from blue to white. 6. Record the final mass of the crystals after heating and the dish:_27.7 grams 7. Calculate mass of Copper Sulfate initial mass and final mass in the Data Table. a Table: Calculations per Sulfate initial (make sure to 29.2 g – 25.1 g Mass (g) 4.1g tract out mass of empty dish) per Sulfate final (make sure to tract out mass of empty dish) ter 27.7- 25.1g 2.6 8 4.1 g – 2.6g 1.5 g lysis/Calculations (Be sure to show all work for each calculation): 1. Find the molar mass of the copper II sulfate, anhydrous form. 2. Find the molar mass of water. 3. Divide the final mass of the anhydrous salt by the molar mass of Cuso, to find the number of moles of CuSO4. 4. Subtract the final mass from the initial mass to find the amount of water that was lost through heating. Record this in the data table. 5. Divide the number of grams of water (Step #4) by the molar mass of water (Step #2) to find the number of moles of water. 6. Find the ratio of moles of anhydrous salt: moles of water by dividing the number of moles of water (Step #5) by the number of moles of anhydrous salt (Step #3). This is the value of "x" in the hydrate. 7. Express the hydrate with the correct value for "x". Note: "X" should be a whole number! If you did not calculate a whole number, you need to go back and find your error. Cuso, • xH;0
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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Transcribed Image Text:2. Write down the chemical reaction for the heating of the hydrated form of copper Il sulfate. The triangle is the symbol for
"heat added".
_Cuso4 • 5H20_>
CuSO4
Н20
3. Record the mass of the empty dish:_25.1 grams
4. Record the initial mass of the reactant and the dish:
5. Make observations about the physical changes that the crystals are undergoing.
_29.2 grams
As the copper sulfate heats up the color changes from blue to white.
6. Record the final mass of the crystals after heating and the dish:_27.7 grams
7. Calculate mass of Copper Sulfate initial mass and final mass in the Data Table.
Data Table:
Calculations
Mass (g)
Copper Sulfate initial (make sure to| 29.2 g- 25.1g
4.1g
subtract out mass of empty dish)
Copper Sulfate final (make sure to
27.7 - 25.1g
2.6g
subtract out mass of empty dish)
Water
4.1 g- 2.6g
1.5g
Analysis/Calculations (Be sure to show all work for each calculation):
1. Find the molar mass of the copper Il sulfate, anhydrous form.
2. Find the molar mass of water.
3. Divide the final mass of the anhydrous salt by the molar mass of Cuso, to find the number of moles of Cuso.
4. Subtract the final mass from the initial mass to find the amount of water that was lost through heating. Record this in the
data table.
5. Divide the number of grams of water (Step #4) by the molar mass of water (Step #2) to find the number of moles of water.
6. Find the ratio of moles of anhydrous salt: moles of water by dividing the number of moles of water (Step #5) by the number
of moles of anhydrous salt (Step #3). This is the value of "x" in the hydrate.
7. Express the hydrate with the correct value for "x". Note: "x" should be a whole number! If you did not calculate a whole
number, you need to go back and find your error.
Cuso, • xH,0
Expert Solution
Step 1
Mass of hydrated copper sulphate = 4.1g
Mass of anhydrated copper sulphate = 2.6g
Mass of water = 1.5 g
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