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 51 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
Great answer, keep it coming :)

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Energy costs of locomotion. Energy costs of locomotion.
Wheals are formed in reaction to scratch testing and intradermal testing of allergens. Wheals are formed in reaction to scratch testing and intradermal testing of allergens.
Energy Transfer Processes: Forced Convection Energy Transfer Processes: Forced Convection
Energy Energy
Ancient drawing of energy channels and acupoints. Ancient drawing of energy channels and acupoints.
The mitochondrion is the center of energy transformation in the cell The mitochondrion is the center of energy transformation in the cell
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library