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...
Related questions
Question
Please check if 7,8,9 are correct and solve 10
![QUESTION 7
Suppose that you weigh out 6.95 g of CuSO4.5 H₂0 at the beginning of the experiment. How many moles of Cu2+ are present in this
sample? Express your answer to 3 significant figures, and do not include units!
0.0278
QUESTION 8
What is the molar mass of the [Cu(NH3)4]SO4 H₂O product that you will isolate at the end of this experiment? Express your answer to 2
decimal places.
245.66
QUESTION 9
If you use 6.95 g of the CuSO4 5 H₂O starting material, what mass in grams of the [Cu(NH3)4]SO4 H₂O product would you expect to
isolate at the end of the reaction? Include 3 significant figures in your answer. This mass represents the theoretical yield of the product.
6.83
QUESTION 10
Suppose that you start with 6.95 g of the CuSO4 5 H₂O starting material, but you only isolate 5.06 g of the [Cu(NH3)4]SO4 H₂O
product. What is the percentage yield of this reaction? Include 3 significant figures in your answer. Just type the number in the answer
box - do not type the % symbol!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F89b1189c-c32b-4144-b592-a832138b3e54%2Fbb393d8f-97ef-486d-a1f6-da29ce2b645c%2Ft195e8u_processed.png&w=3840&q=75)
Transcribed Image Text:QUESTION 7
Suppose that you weigh out 6.95 g of CuSO4.5 H₂0 at the beginning of the experiment. How many moles of Cu2+ are present in this
sample? Express your answer to 3 significant figures, and do not include units!
0.0278
QUESTION 8
What is the molar mass of the [Cu(NH3)4]SO4 H₂O product that you will isolate at the end of this experiment? Express your answer to 2
decimal places.
245.66
QUESTION 9
If you use 6.95 g of the CuSO4 5 H₂O starting material, what mass in grams of the [Cu(NH3)4]SO4 H₂O product would you expect to
isolate at the end of the reaction? Include 3 significant figures in your answer. This mass represents the theoretical yield of the product.
6.83
QUESTION 10
Suppose that you start with 6.95 g of the CuSO4 5 H₂O starting material, but you only isolate 5.06 g of the [Cu(NH3)4]SO4 H₂O
product. What is the percentage yield of this reaction? Include 3 significant figures in your answer. Just type the number in the answer
box - do not type the % symbol!
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