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9:03 AM Mon Jul 14 Problem 16 of 28 Submit Answer: 32.5 °C If 75.5 g of KBr are dissolved in 400.0 g of water at 25.0 °C in an insulated container, a temperature change is observed. The $$\Delta H$$ of solution of KBr is 19.9 kJ/mol. Assuming that the specific heat of the solution is 4.184 J/ (g °C), and that no heat is gained or lost by the container, what will be the final temperature of the solution?

Name: 903 am mon jul 14 problem 16 of 28 submit answer 325 c if 755 g of kbr are dissolved in 4000 g of water at 250 c in an insulated container a temperature change is observed the delta h of sol 12655
Uploaded: 2023-04-30T07:09:07-08:00
Duration: 1 min 53 s
Channel: Madhur L
Description: 903 am mon jul 14 problem 16 of 28 submit answer 325 c if 755 g of kbr are dissolved in 4000 g of water at 250 c in an insulated container a temperature change is observed the delta h of sol 12655

          9:03 AM Mon Jul 14
Problem 16 of 28
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Answer:
32.5 °C
If 75.5 g of KBr are dissolved in 400.0 g of water at 25.0 °C in an insulated container, a temperature change is observed. The $$\Delta H$$ of solution of KBr is 19.9 kJ/mol. Assuming that the specific heat of the solution is 4.184 J/ (g °C), and that no heat is gained or lost by the container, what will be the final temperature of the solution?

903 am mon jul 14 problem 16 of 28 submit answer 325 c if 755 g of kbr are dissolved in 4000 g of water at 250 c in an insulated container a temperature change is observed the delta h of sol 12655

Added by Christopher I.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

04/30/2023

Step 1

The molar mass of KBr is the sum of the atomic masses of K and Br. Atomic mass of K = 39.0983 g/mol Atomic mass of Br = 79.904 g/mol Molar mass of KBr = 39.0983 + 79.904 = 119.0023 g/mol Number of moles of KBr = mass of KBr / molar mass of KBr Number of moles of Show more…

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9:03 AM Mon Jul 14 Problem 16 of 28 Submit Answer: 32.5 °C If 75.5 g of KBr are dissolved in 400.0 g of water at 25.0 °C in an insulated container, a temperature change is observed. The $$\Delta H$$ of solution of KBr is 19.9 kJ/mol. Assuming that the specific heat of the solution is 4.184 J/ (g °C), and that no heat is gained or lost by the container, what will be the final temperature of the solution?