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

Author Question: According to the following thermochemical equation, what mass of H2O (in g) must form in order to ... (Read 136 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
on: Aug 27, 2018
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy?
 
  SiO2(s) + 4 HF(g)  SiF4(g) + 2 H2O(l) Hrxn = -184 kJ
 
  A) 68.0 g
  B) 102 g
  C) 54.1 g
  D) 191 g
  E) 95.5 g

Question 2

Calculate the density of cyclohexane if a 50.0 g sample has a volume of 64.3 mL.
 
  A) 114.3 g/mL
  B) 14.3 g/mL
  C) 1.29 g/mL
  D) 0.778 g/mL
  E) 0.322 g/mL


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


savannahhooper

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Aug 27, 2018
TY


chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Aug 27, 2018
You're welcome


« previous next »
 

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Cellular Respiration Equation Cellular Respiration Equation
An example of an EHR screen used to order a laboratory test. An example of an EHR screen used to order a laboratory test.
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Rank-order correlations show that differential consistency remains high from childhood through late ... Rank-order correlations show that differential consistency remains high from childhood through late ...
First-order sensory neuron with encapsulated nerve endings First-order sensory neuron with encapsulated nerve endings
Video: Fetal Development of the Cardiovascular System

For a complete list of videos, visit our video library