unit-3-review-answers - 1. HCl = 3.0 2.1 = 0.9:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1. HCl = 3.0 – 2.1 = 0.9: dipole-dipole, London. H 2 O = 3.5 – 2.1 = 1.4: hydrogen bonding (H with N, O, or F), London. NaCl = 3.0 – 0.9 = 2.1: ionic, London. CH 4 = 2.5 – 2.1 = 0.4: London only. 2. a) Solubility is a balance between attractive forces and the speed of molecules. Oil doesn’t mix with water because the speed of the oil molecules is not sufficient to break through the attractive forces of the water. Water offers less resistance to molecules of HCl since water has a greater attraction for HCl than it has for oil. Thus, the speed of the HCl molecules is sufficient to break through
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
warmer water because water molecules move faster at higher temperatures. Unlike solids, dissolved gases can leave the surface of a liquid. The higher the temperature, the faster the gas (and liquid) molecules are traveling. This gives a larger percentage of the gas molecules the speed they need to escape the surface of the liquid (thus, gases have a lower solubility at higher temperatures). 3. 12 % V/V = 12 mL/100 mL, 12 L/100 L, etc.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/09/2011 for the course CHEM 110 taught by Professor Sullivan during the Fall '10 term at BYU.

Page1 / 8

unit-3-review-answers - 1. HCl = 3.0 2.1 = 0.9:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online