Chapter 5 -lecture 1

Chapter 5 -lecture 1 - General Chemistry I Fall 2007 Joann...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: General Chemistry I Fall 2007 Joann S. Monko Chemistry 9th ed. Raymond Chang Clicker Question Which statement is NOT Correct? A. pH = 1.89 is equal to [H + ] = 1.29 x 10-2 M B. pH = 4.55 is equal to [H + ] = 2.82 x 10-5 M C. pH = 7.38 is equal to [H + ] = 4.17 x 10-8 M D. pH = 8.95 is equal to [H + ] = 7.85 x 10-9 M E. pH= 11.05 is equal to [H+]= 8.91 x 10-12 M Importance of Gases Importance of Gases Airbags fill with N Airbags fill with N 2 gas. gas. Gas is generated by the decomposition Gas is generated by the decomposition of sodium azide, NaN of sodium azide, NaN 3 . . 2 NaN 2 NaN 3---> 2 Na + 3 N---> 2 Na + 3 N 2- Common elements/compounds exist as gases. Others can be vaporized. Table 5.1- Our atmosphere duh!- Gases can be described/explained using simple mathematical models. Kotz &Treichel Chemistry & Chemical Reactivity 5th ed. General Properties of Gases There is a lot of free space in a gas. There is a lot of free space in a gas. Can be expanded infinitely. Can be expanded infinitely. Occupy containers uniformly/completely. Occupy containers uniformly/completely. Diffuse and mix rapidly. Diffuse and mix rapidly. Have much lower densities than Have much lower densities than l l & & s s . . Kotz &Treichel Chemistry & Chemical Reactivity 5th ed. Properties of Gases Gas properties can be modeled Gas properties can be modeled using math. Model depends on using math. Model depends on V = volume of the gas (L) V = volume of the gas (L) T = temperature (K) T = temperature (K) n = amount (moles) n = amount (moles) P = pressure (atmospheres) P = pressure (atmospheres) STP = standard temperature and pressure = 273 K (0 C) and 1 atm Kotz &Treichel Chemistry & Chemical Reactivity 5th ed. Pressure Pressure Pressure of air is measured...
View Full Document

Page1 / 27

Chapter 5 -lecture 1 - General Chemistry I Fall 2007 Joann...

This preview shows document pages 1 - 7. Sign up to view the full document.

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