This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: 2 LiOH(s) Li2O(s) + H2O(l) rH = 379.1 kJ/mol LiH(s) + H2O(l) LiOH(s) + H2(g) rH = -111.0 kJ/mol 2 ... (Read 195 times)

magmichele12

  • Hero Member
  • *****
  • Posts: 559
on: Jul 8, 2021

Question 1

1674 J of heat are absorbed by 25.0 mL of NaOH (d = 1.10 g/mL, specific heat = 4.10 J/g °C). The temperature of the NaOH goes up by how many degrees?
◦ 14.8 °C
◦ 18.0 °C
◦ 17.2 °C
◦ 14.2 °C
◦ 19.1 °C

Question 2

2 LiOH(s) → Li2O(s) + H2O(l)  ΔrH° = 379.1 kJ/mol
LiH(s) + H2O(l) → LiOH(s) + H2(g)  ΔrH° = -111.0 kJ/mol
2 H2(g) + O2(g) → 2 H2O(l)  ΔrH° = -285.9 kJmol

Compute ΔrH° in kJ/mol for 2 LiH(s) + O2(g) → Li2O(s) + H2O(l)
◦ +125.2 kJ/mol
◦ -17.7 kJ/mol
◦ -128.8 kJ/mol
◦ -303.6 kJ/mol
◦ + 128.8 kJ/mol
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by magmichele12 on Jul 8, 2021

ricroger

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


magmichele12

  • Member
  • Posts: 559
Reply 2 on: Jul 8, 2021
Wow, this really help

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Video: Elementary kinetics

For a complete list of videos, visit our video library