View the step-by-step solution to: a soild compound is a poor conductor of electricity. when

a soild compound is a poor conductor of...
a soild compound is a poor conductor of electricity. when dissolved in water, it becomes a good conductor of electricty.
what type of chemical bonding would most likely be founded in this compound?
Quiz5.docx

Chem 111
Quiz 5
Fall 2012
Name:
1. Draw the correct Lewis Structures of the following molecules and identify their
molecular geometry (2 pts each) (hint: check formal charges to identify the correct
structure).
a) CS2

b) CH2O
c) CCl3F
d) NO2Cl

2. Which of the following substances will exhibit dipole forces? (2 pts)
a.
b.
c.
d.

SO3
H2S
CH4
SF6
3. Freon-113, C2Cl3F3, has an enthalpy of vaporization of 27.04 kJ/mol and a normal boiling
point of 48C. At what temperature is the vapor pressure of Freon-113 equal to 76.0 mm
Hg? (R = 8.31 J/K mol) (3 pts)

4. The phase diagram for CO2 has a triple point at 56.6 C and 5.19 atm, and a critical point
at 31.0 C and 73 atm. The solid and gas phases are in equilibrium at 78.7 C and 1.00
atm. Which of the following statements regarding CO2 is/are CORRECT? (2 pts)
1. Sublimation occurs if the temperature of the solid phase is increased from
79.0 C to 0.0 C at a constant pressure of 2.5 atm.
2. CO2 is a supercritical fluid at 55 C and 75 atm.
3. At pressures greater than its critical pressure (73 atm), CO2 will not exist as a
solid at any temperature.
a. 1 only
b. 2 only

c. 3 only
d. 1 and 2
5. Determine the heat of reaction for the decomposition of one mole of benzene to acetylene
(2 pts)
C6H6(l) 3C2H2(g)
given the following thermochemical equations:
2C6H6(l) + 15O2(g) 12CO 2(g) + 6H2O(g)
H = 6271 kJ
2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g)
H = 2511 kJ

6. Carbon and oxygen react to give carbon dioxide. The reaction of 4.49 g C(s) with 9.21 g
O2(g) releases 113.2 kJ of heat. What is the enthalpy of formation of CO2(g)? (2 pts)

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors and customizable flashcards—available anywhere, anytime.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access or to earn money with our Marketplace.

    Browse Documents
  • 890,990,898

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
  • 890,990,898

    Flashcards

    Browse existing sets or create your own using our digital flashcard system. A simple yet effective studying tool to help you earn the grade that you want!

    Browse Flashcards