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

Author Question: Determine the heat given off to the surroundings when 9.0 g of aluminum reacts according to the ... (Read 17 times)

mustachegiraffe

  • Full Member
  • ***
  • Posts: 179
on: Nov 5, 2023

Question 1

Concerning the reaction
C(graphite) + O2(g) → CO2(g)
ΔH° = –393 kJ/mol
how many grams of C(graphite) must be burned to release 275 kJ of heat?

◦ 0.70 g
◦ 8.40 g
◦ 12.0 g
◦ 17.1 g
◦ 22.3 g

Question 2

Determine the heat given off to the surroundings when 9.0 g of aluminum reacts according to the equation 2Al + Fe2O3→ Al2O3 + 2Fe, ΔH°rxn= –849 kJ/mol.
◦ 1.4 × 102 kJ
◦ 2.8 × 102 kJ
◦ 5.6 × 102 kJ
◦ 2.5 × 103 kJ
◦ 7.6 × 103 kJ
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by mustachegiraffe on Nov 5, 2023

ryanb

  • Full Member
  • ***
  • Posts: 164
Reply #1 on: Nov 5, 2023
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 45% of students answer this correctly


mustachegiraffe

  • Member
  • Posts: 179
Reply 2 on: Nov 5, 2023
Excellent

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

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

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Ways to prevent heat waves Ways to prevent heat waves
Aquamatic pad and heating unit provide dry heat treatment to a patient’s arm. Aquamatic pad and heating unit provide dry heat treatment to a patient’s arm.
Earth’s Heat Budget Earth’s Heat Budget
Determine the enthalpy change of this reaction Determine the enthalpy change of this reaction
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
In an acid-base neutralization reaction, 33.74 mL of 0.500 M potassium hydroxide reacts with ... In an acid-base neutralization reaction, 33.74 mL of 0.500 M potassium hydroxide reacts with ...
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library