PORTAGE LEARNING CHEM 103 MODULE 6 Exam

CHEM 103
MODULE 6 2022

Question 1
Not yet graded / 10 pts
Click this link to access the Periodic Table. This may be helpful throughout
the exam.


List and explain if each of the following solutions conducts an electric
current: sodium chloride (NaCl), hydrochloric acid (HCl) and sugar (C6H12O6).
Sodium chloride (NaCl) is an ionic compound and conducts since it forms ions
in solution. Hydrochloric acid (HCl) is a polar compound and conducts since it
forms ions in solution. Sugar (C6H12O6) is a molecular compound but does not
form ions in solution so it does not conduct.

Question 2
Not yet graded / 10 pts
Explain how and why the presence of a solute affects the boiling point of a
solvent.
The presence of a solute raises the boiling point of a solvent by lowering the
vapor pressure of the solvent. With this lower vapor pressure, more heat (a
higher boiling point) is required to raise the vapor pressure to atmospheric
pressure.

Question 3
Not yet graded / 10 pts
Click this link to access the Periodic Table. This may be helpful throughout
the exam.