Subjects
Sections | |||
---|---|---|---|
Solutions, Molarity and Intermolecular Forces | 7 mins | 0 completed | Learn |
Henry's Law | 20 mins | 0 completed | Learn Summary |
Calculate Molarity | 27 mins | 0 completed | Learn Summary |
Mass Percent | 10 mins | 0 completed | Learn |
Molality | 15 mins | 0 completed | Learn |
Mole Fraction | 14 mins | 0 completed | Learn |
The Colligative Properties | 45 mins | 0 completed | Learn |
Additional Practice |
---|
Making Solutions |
Freezing Point Depression |
Colloid |
Additional Guides |
---|
ppm |
The Freezing Point Depression |
Boiling Point Elevation |
You need to make a solution that freezes at -125.0 °C. How many grams of CaCl2 salt must you add to 68.0 g of ethanol (C2H6O) to make a solution that freezes at -125.0 °C?
Reminder: Pure ethanol freezes a -114.1 °C. For ethanol: KF = 1.99 °C/m KB = 1.22 °C/m
Molar masses: Ethanol = 46.07 g/mol; CaCl2 = 110.98 g/mol
Enter your friends' email addresses to invite them:
Join thousands of students and gain free access to 46 hours of Chemistry videos that follow the topics your textbook covers.