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 192 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?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ... Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ...
Sample Menu: Carb Choices Sample Menu: Carb Choices
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ... A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
Temperature influences air pressure. Temperature influences air pressure.
Warning Signs of Heat Exhaustion and Heat Stroke Warning Signs of Heat Exhaustion and Heat Stroke
Mechanisms of Heat Transfer Mechanisms of Heat Transfer
Video: Aneurysm

For a complete list of videos, visit our video library