Chem 105 Final Review

Chem 105 Final Review - Chem 105 Current Material...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 105 Current Material
Background image of page 1

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

View Full DocumentRight Arrow Icon
Calculating partial pressure mole fraction PA = XAPT In other words: the fraction of the P due to A is the fraction of molecules that are A.
Background image of page 2
Micro Exam Question (Try this without a calculator) A bottle contains 2 g of helium, 10 g of neon, and 40 g of argon gases. The total gas pressure in the bottle is 600 torr. The partial pressures of the 3 gases (in mm Hg) are, in order 600, 600, 600 600, 300, 300 300, 300, 600 150, 300, 300
Background image of page 3

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

View Full DocumentRight Arrow Icon
Kinetic molecular theory —really
Background image of page 4
Rate of diffusion with T
Background image of page 5

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

View Full DocumentRight Arrow Icon
Micro Exam Question Question Atomic lithium can vaporize to a gas at high temperature. Li gas diffuses 2.14 times faster than gas X. Which of the following gases is gas X Answer oxygen gas (O2) neon gas argon gas nitrogen gas
Background image of page 6
Another one! At the same temperature, water vapor molecules will diffuse ________ times _________ than carbon dioxide molecules. Answer 6.4, faster 1.6, faster 12.0, faster 6.4, slower 1.6, slower
Background image of page 7

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

View Full DocumentRight Arrow Icon
Intermolecular forces London Dispersion (Induced dipole- induced dipole)—all molecules ü only important in non-polar, e.g., N2 ü “polarizability” I2 vs Cl2 Dipole-induced dipole e.g., I2 + methanol ü “polarizability” I2 vs Cl2 Dipole-dipole e.g. NF3 Hydrogen bonding N, O, or F bonded
Background image of page 8
H-bonding Only N, O, F when bonded to H e.g., HF Water unusual: ice floats boiling points
Background image of page 9

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

View Full DocumentRight Arrow Icon
1) Molecular weight  (think about kinetic molecular theory)  Intermolecular forces  e.g., methane, water  e.g., ethanol vs dimethyl ether (MW?)  e.g., noble gas series
Background image of page 10
What affects solubility? Intermolecular forces “like dissolves like” methanol in water / chloroform in water Separations: solvent extraction Iodine between water, carbon tetrachloride
Background image of page 11

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

View Full DocumentRight Arrow Icon
More Questions! Which of the following species has the largest surface tension and highest viscosity? Answer CH4 C5H11OH C6H14 C2H5OH
Background image of page 12
What’s this… another question?
Background image of page 13

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

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/04/2011 for the course CHEM 105 taught by Professor Macedone during the Fall '07 term at BYU.

Page1 / 47

Chem 105 Final Review - Chem 105 Current Material...

This preview shows document pages 1 - 14. Sign up to view the full document.

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