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

Author Question: How much energy is evolved during the reaction of 48.7 g of Al according to the reaction below? ... (Read 106 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Nov 18, 2019

Question 1

How much energy is required to decompose 765 g of PCl3 according to the reaction below? The molar mass of PCl3 is 137.32 g mol-1 and may be useful.

4PCl3(g) → P4(s) + 6Cl2(g)DrH° = +1207 kJ

◦ 1.68 × 103 kJ
◦ 4.33 × 103 kJ
◦ 6.72 × 103 kJ
◦ 2.31 × 103 kJ
◦ 5.95 × 103 kJ

Question 2

How much energy is evolved during the reaction of 48.7 g of Al according to the reaction below? Assume that there is excess Fe2O3.

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

◦ 241 kJ
◦ 415 kJ
◦ 130 kJ
◦ 207 kJ
◦ 769 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 sammy on Nov 18, 2019

triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
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 55% of students answer this correctly


sammy

  • Member
  • Posts: 818
Reply 2 on: Nov 18, 2019
Wow, this really help

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Worldwide Use of Nuclear Energy Worldwide Use of Nuclear Energy
Effect of a catalyst on activation energy Effect of a catalyst on activation energy
Solar energy heats the atmosphere, creates seasons, and causes air to circulate Solar energy heats the atmosphere, creates seasons, and causes air to circulate
Lab: Mass Relationships in Chemical Reaction Lab: Mass Relationships in Chemical Reaction
Which of the following represents a reaction coordinate diagram for a chemical reaction whose ... Which of the following represents a reaction coordinate diagram for a chemical reaction whose ...
The leptin–melanocortin pathway of energy balance The leptin–melanocortin pathway of energy balance
Video: Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library