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

Author Question: Calculate the amount of heat (in kJ) required to raise the temperature of a 79.0 g sample of ethanol ... (Read 150 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Aug 27, 2018
Calculate the amount of heat (in kJ) required to raise the temperature of a 79.0 g sample of ethanol from 298.0 K to 385.0 K. The specific heat capacity of ethanol is 2.42 J/gC.
 
  A) 57.0 kJ
  B) 16.6 kJ
  C) 73.6 kJ
  D) 28.4 kJ
  E) 12.9 kJ

Question 2

Determine the number of grams H2 formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41  1023 atoms of Fe according to the following reaction. 2 HCl(aq) + Fe(s)  H2(g) + FeCl2(aq)
 
  A) 0.374 g
  B) 1.33 g
  C) 1.14 g
  D) 0.187 g
  E) 1.51 g

Question 3

How many centimeters are there in one kilometer?
 
  A) 105 cm
  B) 102 cm
  C) 101 cm
  D) 10-2 cm
  E) 10-5 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joshbk44

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

D

Answer to Question 3

A


theo

  • Hero Member
  • *****
  • Posts: 698
Reply #2 on: Aug 27, 2018
TY


joshbk44

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Aug 27, 2018
You're welcome


« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Taking a Patient’s Axillary Temperature Taking a Patient’s Axillary Temperature
Heat Transfer Mechanisms Heat Transfer Mechanisms
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
How to calculate mortgage payments (Question 2 of 2) How to calculate mortgage payments (Question 2 of 2)
How to calculate monthly mortgage payments at varying amortization periods (Question 1) How to calculate monthly mortgage payments at varying amortization periods (Question 1)
Three different patterns of temperature-dependent sex determination (TSD) in reptiles Three different patterns of temperature-dependent sex determination (TSD) in reptiles
Video: Skin Cancer

For a complete list of videos, visit our video library