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

Author Question: According to the following reaction, how much energy is required to decompose 55.0 kg of Fe3O4? The ... (Read 25 times)

lindiwe

  • Hero Member
  • *****
  • Posts: 577
on: Nov 18, 2019

Question 1

How much energy is evolved during the formation of 98.7 g of Fe according to the reaction below?

Fe2O3(s) + 2Al(s) → Al2O3(s) + 2Fe(s)DrH° = -852 kJ

◦ 482 kJ
◦ 753 kJ
◦ 1.51 × 103 kJ
◦ 241 kJ
◦ 4.20 × 103 kJ

Question 2

According to the following reaction, how much energy is required to decompose 55.0 kg of Fe3O4? The molar mass of Fe3O4 is 231.55 g mol-1.

Fe3O4(s) → 3Fe(s) + 2O2(g)DrH° = +1118 kJ

◦ 2.66 × 105 kJ
◦ 3.44 × 104 kJ
◦ 2.38 × 102 kJ
◦ 1.12 × 103 kJ
◦ 1.10 × 106 kJ
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by lindiwe on Nov 18, 2019

johnharpe

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Nov 18, 2019
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


lindiwe

  • Member
  • Posts: 577
Reply 2 on: Nov 18, 2019
Excellent

phuda

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Models for the electron orbitals and energy shells of carbon Models for the electron orbitals and energy shells of carbon
Cell Energy Cell Energy
Renewable Energy Efforts Renewable Energy Efforts
Model of a purple bacterial reaction center complex Model of a purple bacterial reaction center complex
“New” Renewable Energy Sources “New” Renewable Energy Sources
Peptide bond formation between two amino acids, resulting from a dehydration reaction Peptide bond formation between two amino acids, resulting from a dehydration reaction
Video: Frequency of stimulation and force (Recruitment of motor units and force)

For a complete list of videos, visit our video library