Happy birthday lee morgan 1938
This presentation is the property of its rightful owner.
Sponsored Links
1 / 23

Happy Birthday Lee Morgan (1938) PowerPoint PPT Presentation


  • 74 Views
  • Uploaded on
  • Presentation posted in: General

Happy Birthday Lee Morgan (1938). Reading: Chapter 16 sections 1-3 HW 13.2: Due 7/14/14 Chap. 13 #s 66, 67, 71, 73, 74, 78, 79, 85, 87, 89, 95, 112, 143 HW 15: 7/15/14 Chap . 15 #s 14, 15, 17, 21, 23, 25, 28, 30, 35, 40, 41, 45, 49, 55, 59, 63-73 odd, 91, 94, 105, 118, 122, 126, 127, 129

Download Presentation

Happy Birthday Lee Morgan (1938)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Happy birthday lee morgan 1938

Happy Birthday Lee Morgan (1938)

  • Reading: Chapter 16 sections 1-3

  • HW 13.2: Due 7/14/14

    • Chap. 13 #s 66, 67, 71, 73, 74, 78, 79, 85, 87, 89, 95, 112, 143

  • HW 15: 7/15/14

    • Chap. 15 #s 14, 15, 17, 21, 23, 25, 28, 30, 35, 40, 41, 45, 49, 55, 59, 63-73 odd, 91, 94, 105, 118, 122, 126, 127, 129

  • Lab Monday (Dry LAB!)

  • Monday – Nomenclature Proficiency Quiz 2

  • Exam 3…?


Happy birthday lee morgan 1938

Dalton’s law of partial pressures states that the total pressure of a gaseous mixture is equal to the sum of the individual pressures of each gas.

P1 + P2 + P3 + … = Ptotal

The pressure exerted by each gas in a mixture is its partial pressure, Pn.


Happy birthday lee morgan 1938

672.43 mL of hydrogen was collected over water on a day when the barometer read 661.2 mmHg. The temperature of the wet gas was 25 oC.

1) What is the partial pressure of the gas? (vapor pressure of water at 25 oC is 23.8 mmHg)


Happy birthday lee morgan 1938

672.43 mL of hydrogen was collected over water on a day when the barometer read 661.2 mmHg. The temperature of the wet gas was 25 oC.

2) What is the volume of the gas at STP?

P

V

V

P-ratio < 1

T

T-ratio < 1


Happy birthday lee morgan 1938

672.43 mL of hydrogen was collected over water on a day when the barometer read 661.2 mmHg. The temperature of the wet gas was 25 oC.

3) What was the mass of hydrogen collected?


Ideal gas law

An ideal gas is a gas that behaves in a predictable and consistent manner.

Ideal gases have the following properties:

gases are made up of very tiny molecules

gas molecules demonstrate rapid motion in straight lines and in random directions

gas molecules have no attraction for one another

gas molecules undergo elastic collisions

the average kinetic energy of gas molecules is proportional to the Kelvin temperature, KE ∝ T

Ideal Gas Law


Ideal gas law1

Ideal Gas Law

Avogadro’s Law – Particles and Volume

Particles and volume are directly proportional

+


Ideal gas law2

Ideal Gas Law

almost there!!!!!!

  • If we introduce a proportionality constant, R, we can write the equation:


Ideal gas law3

Ideal Gas Law

pressure (must be

in atm)

temperature (must

be in K)

volume (must be

in L)

particles (must be

in mol)


Ideal gas law4

Ideal Gas Law


Ideal gas law5

Ideal Gas Law

What is the temperature of 0.250 mol of chlorine gas at 655 torr if the volume is 3.50 L?

147 K or -126 oC


Ideal gas law6

Ideal Gas Law

What is the temperature of 0.250 mol of chlorine gas at 655 torr if the volume is 3.50 L?

147 K or -126 oC


Ideal gas law7

Ideal Gas Law

How many grams of NO2 gas occupy a volume of 0.8635 L at 0.9446 atm and 25 oC?


Solutions

Solutions

  • Solution – A system in which one or more substances are mixed or dissolved in another substance.

  • Solute – The substance that is being dissolved, or the least abundant component, of a solution.

  • Solvent – The dissolving agent or the most abundant component in a solution.

  • A solute goes into a solvent to make a solution(solute + solvent = solution)

  • Table salt (solute) is put in water (solvent) to make saltwater (solution)


Polar and nonpolar solvents

Polar and Nonpolar Solvents

  • A liquid composed of polar molecules is a polar solvent. Water and ethanol are polar solvents.

  • A liquid composed of nonpolar molecules is a nonpolar solvent. Hexane is a nonpolar solvent.


Like dissolves like

Like Dissolves Like

  • Polar solvents dissolve in one another.

  • Nonpolar solvents dissolve in one another.

  • This is the like dissolves like rule.

  • Methanol dissolves in water, but hexane does not dissolve in water.

  • Hexane dissolves in toluene, but water does not dissolve in toluene.


Polar and nonpolar solvents1

Polar and Nonpolar Solvents


Miscible immiscible

Miscible & Immiscible

  • Two liquids that completely dissolve in each other are miscible liquids.

  • Two liquids that are not miscible in each other are immiscible liquids.


Miscible immiscible1

Miscible & Immiscible

  • Polar water and nonpolar oil are immiscible liquids and do not mix to form a solution.


Solids in solution

Solids in Solution

  • When a solid substance dissolves in a liquid, the solute particles are attracted to the solvent particles.

  • When a solution forms, the solute particles are more strongly attracted to the solvent particles than other solute particles.


Solutions1

Solutions

23.00 grams of hydrogen chloride is added to 55.00 grams of water.

solvent =

water

solute =

hydrogen chloride

solution =

hydrogen chloride solution

hydrochloric acid


Solutions2

Solutions

A potassium permanganate solution contains 1.223 grams of solute

solution =

potassium permanganate solution

solvent =

water

solute =

potassium permanganate


Solutions3

Solutions

59.88 mL of benzene has 12.4 mL of chloroform dissolved into it.

solvent =

benzene

solute =

chloroform


  • Login