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 60 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
Excellent

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

The Glutamine Synthetase Reaction The Glutamine Synthetase Reaction
Effect of the activation energy barrier. Effect of the activation energy barrier.
Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy. Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy.
How much energy is required to form 141.8 g of Cl2, according to the reaction below? The molar ... How much energy is required to form 141.8 g of Cl2, according to the reaction below? The molar ...
A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is ... A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is ...
Gravitational Potential Energy Gravitational Potential Energy
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library