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| Teaching Since: | Apr 2017 |
| Last Sign in: | 364 Weeks Ago, 1 Day Ago |
| Questions Answered: | 12843 |
| Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
A) 1 and 2 only
B) 2 and 3 only
C) 3 only
D) All of 1, 2, and 3
E) None of 1, 2, and 3
2.Which of the following is an example of an atomic solid?
a. C6H12O6
b. HCl
c. SO2
d. NaCl e. None of the above
3. Which of the following would be the poorest conductor of electricity?
a. NaCl (aq)
b. NH4NO3 (aq)
c. H2O (l)
d. MgCl2 (aq)
e. HF (aq)
4.How would you safely prepare 500. mL of 1.00 M H2SO4 solution from a 12.4 M H2SO4 stock solution? Select the best answer.
a. Add 40.3 mL of 12.4 M H2SO4 to 500. mL of water.
b. Add 12.4 mL of 12.4 M H2SO4 to 500. mL of water.
c. Add 40.3 mL of 12.4 M H2SO4 to 459.7 mL of water.
d. Add 459.7 mL of water to 40.3 mL of 12.4 M H2SO4.
e. Add 500. mL of water to 40.3 mL of 12.4 M H2SO4
5.Determine the molar concentrations of Ca2+ and Cl– in a 0.38 M calcium chloride solution.
a. 0.38 M Ca2+ and 0.38 M Cl–
b. 0.19 M Ca2+ and 0.38 M Cl–
c. 0.38 M Ca2+ and 0.76 M Cl–
d. 0.19 M Ca2+ and 0.76 M Cl–
6. Which of the following can act as an Arrhenius base?
a. Ca(OH)2
b. H2O
c. KOH
d. H2SO4
e. Two of the above
7. How many liters of a 2.18 M solution can be made from 200.0 g K2S?
A) 0.832
B) 1.81
C) 0.252
D) 1.20
E) none of the above
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