Copper (II) sulfate pentahydrate may be heated to drive off the water of hydration. If 5 g of water are produced, what was the original weight of the copper (II) sulfate pentahydrate (CuSO4 • 5H2O)? CuSO4 • 5H2O → CuSO4 + H2O. The answer given was 13.9g. Can someone explain how this answer is found?

1 answer

Question:

Copper (II) sulfate pentahydrate may be heated to drive off the water of hydration. If 5 g of water are produced, what was the original weight of the copper (II) sulfate pentahydrate (CuSO4 • 5H2O)? CuSO4 • 5H2O → CuSO4 + H2O. The answer given was 13.9g. Can someone explain how this answer is found?

Answer:13.9g of CuSO4•5H2OExplanation:We'll begin by writing the balanced equation for the reaction. This is given below:CuSO4•5H2O → CuSO4 + 5H2ONext, we shall determine the mass of CuSO4•5H2O heated and the mass of H2O produced from the balanced equation. This is illustrated belowMolar mass of CuSO4• 5H2O = 63.5 + 32 + (16x4) + 5(2x1 + 16)= 63.5 + 32 + 64 + 5(18) = 249.5g/molMass of CuSO4•5H2O from the balanced equation = 1 x 249.5 = 249.5gMolar mass of H2O = (2x1) + 16 = 18g/mol Mass of H2O from the balanced equation = 5 x 18 = 90gFrom the balanced equation above, 249.5g of CuSO4•5H2O produced 90g of H2O.Now, we can determine the mass of CuSO4•5H2O needed to produce 5g of H2O. This can be achieved as shown below:From the balanced equation above, 249.5g of CuSO4•5H2O produced 90g of H2O.Therefore, Xg of CuSO4•5H2O will produce 5g of H2O i.eXg of CuSO4•5H2O = (249.5 x 5)/90Xg of CuSO4•5H2O = 13.9gTherefore, 13.9g of CuSO4•5H2O is needed to produce 5g of H2O.

Which sentences are unclear because of the placement of prepositional phrases? Select all that apply.
Five small birds perched on the fence beside the pasture.
The clerk showed the hat to the customer with earflaps.
I can’t make the cookies without chocolate chips.
I found an old television set i...

A margarita made from 4 fl. oz. of the mix plus 1.5 fl. oz. of tequila (containing 15 g alcohol) will create a drink that provides how many calories?...

PRESIDENT NIXON AND VIETNAMIZATION (754-755)
HOW DID THE TET OFFENSIVE AFFECT AMERICA?
Richard Nixon pledged to end American involvement in the Vietnam War. With National Security Adviser Henry Kissinger, he came up with a plan to end the war. Their plan was known as Vietnamization. It called fo...

What did the Force Bill authorize President Jackson to do? Check all of the boxes that apply.
arrest John Calhoun for treason
collect the tariff by force if necessary
use the military to enforce a federal law...

A 150-lb patient is prescribed acetaminophen at 7.34 mg/kg. If acetaminophen is available on hand as a 0.125 mg/ml syrup, how many mililiters will the nurse administer?...

Karita had $138.72 in her checking account . She wrote checks to take out $45.23 and $18.00, and then made a deposit of $75.85 into her account.how much does karita have in her account now...

Former-CEO Kalanick’s question of "What kind of brand do we want to be?" represents which stage of the strategic management process? Multiple Choice
a. maintain strategic control formulate
b. the grand strategy and strategic,
c. tactical, and operational plans establish the mission and vision a...

A researcher compares the effectiveness of two different instructional methods for teaching anatomy. A sample of 175 students using Method 1 produces a testing average of 89.6. A sample of 177 students using Method 2 produces a testing average of 68.8. Assume the standard deviation is known to be 17...

PLEASE WILL GIVE BRAINLIEST WORTH 100 POINTS !!!!!!!!!!!!!!!!
A right triangle is inscribed in a circle as shown. What is the area of the shaded region?
A. 5.04 square centimeters
B. 41.60 square centimeters
C. 77.32 square centimeters
D. 416.44 square centimeters...