Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules...

11
Molar Volume

Transcript of Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules...

Page 1: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Molar Volume

Page 2: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Avagadro’s Principle

Equal volumes of gases contain equal numbers of molecules

Volume of a gas varies directly with the number of molecules if pressure and temperature stay constant

Page 3: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Standard Molar Volume

Volume occupied by 1 mole of a gas at STP 22.414 L/moleOne mole of any gas occupies 22.414 L at

STP

Page 4: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Examples

What volume will 3.75 moles of O2 occupy at STP?

How many moles in 1.5 L of H2 at STP?

Page 5: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Examples

A chemical reaction produced 45.0ml of Nitrogen gas at STP. What is the mass of the gas produced?

What volume will 88g of carbon dioxide occupy at STP?

Page 6: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Partial Pressure

In a mixture of gases, the total pressure of the mixture is the sum of the pressures of each gas

Pair = Pnit + Pox + PH + …..

Page 7: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

We can find out the pressure in the fourth container.

By adding up the pressure in the first 3.

2 atm

1 atm

3 atm

6 atm

Page 8: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Gas Collection

When pure gases are collected over water, some water vapor will be present in the gas

The total pressure of the gas is equal to the pressure of the gas plus the pressure of the water vapor

PT = PG + Pwat

Page 9: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.
Page 10: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Pressure of Water Vapor Depends on the Temp

Page 11: Molar Volume. Avagadro’s Principle Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules.

Example

A gas is collected over water on a day where the atmospheric pressure is 755mmHg and the temp is 20°C. What is the partial pressure of the gas?


Molecules 1 and Molecules 2 - Lekolar

Molecules 1 and Molecules 2 - Lekolar

Avogadros Principle Equal volumes of gases at the same temperature and pressure contain equal number of molecules.

Avogadros Principle Equal volumes of gases at the same temperature and pressure contain equal number of molecules.

Chemistry of Organic Molecules 3.1 Organic molecules overview.

Chemistry of Organic Molecules 3.1 Organic molecules overview.

California Courts - HomeKeywords Equal Access,equal employment,employment equal,equal policy,equal access law,equal access education,equal access employment …

California Courts - HomeKeywords Equal Access,equal employment,employment equal,equal policy,equal access law,equal access education,equal access employment …

SHAPES OF MOLECULES - WikiEducatorwikieducator.org/images/a/a9/Shape.pdf · MOLECULES WITHOUT LONE PAIRS MOLECULES WITH LONE PAIRS Because of the equal repulsive forces between bond

SHAPES OF MOLECULES - WikiEducatorwikieducator.org/images/a/a9/Shape.pdf · MOLECULES WITHOUT LONE PAIRS MOLECULES WITH LONE PAIRS Because of the equal repulsive forces between bond

1 - Atoms, Molecules and StoiAtoms, Molecules and Stoichiometrychiometry

1 - Atoms, Molecules and StoiAtoms, Molecules and Stoichiometrychiometry

© NCERTncert.nic.in/NCERTS/l/kech107.pdf · 186 CHEMISTRY reverse reactions become equal. ... water molecules at a given temperature ... CO 2 (gas) ⇌CO 2(in solution)

© NCERTncert.nic.in/NCERTS/l/kech107.pdf · 186 CHEMISTRY reverse reactions become equal. ... water molecules at a given temperature ... CO 2 (gas) ⇌CO 2(in solution)

ORGANIC MOLECULES BY DAWN THOMPSON Organic molecules.

ORGANIC MOLECULES BY DAWN THOMPSON Organic molecules.

All Dialyzers are NOT Created Equal. Designed to clear ... · Dialyzer’s membrane removes a large fraction of middle molecules similarly sized to Beta-2 Microglobulin (SC = 0.7,

All Dialyzers are NOT Created Equal. Designed to clear ... · Dialyzer’s membrane removes a large fraction of middle molecules similarly sized to Beta-2 Microglobulin (SC = 0.7,

Manipulation of Molecules withElectromagneticFields … · 2 II. MOLECULES IN FIELDS A. Individual molecules Unlike atoms, molecules possess the vibrational and rotational degrees

Manipulation of Molecules withElectromagneticFields … · 2 II. MOLECULES IN FIELDS A. Individual molecules Unlike atoms, molecules possess the vibrational and rotational degrees

The Molecules of Life Day 1 - Carbohydrates. MOLECULES OF LIFE organic molecules –Are molecules containing carbon –Macromolecules (“large molecules) made.

The Molecules of Life Day 1 - Carbohydrates. MOLECULES OF LIFE organic molecules –Are molecules containing carbon –Macromolecules (“large molecules) made.

Molecules in a hotter gas move faster, all else being equal. the kind of molecule is the same the greater the average kinetic energy of the molecules.

Molecules in a hotter gas move faster, all else being equal. the kind of molecule is the same the greater the average kinetic energy of the molecules.

Molecules of Life Organic Molecules Biological Molecules.

Molecules of Life Organic Molecules Biological Molecules.

TOPIC 3.2 MOLECULES OF CELLS. ORGANIC and INORGANIC MOLECULES 3.2.1 ORGANIC MOLECULES: molecules containing C and H in their structure INORGANIC MOLECULES.

TOPIC 3.2 MOLECULES OF CELLS. ORGANIC and INORGANIC MOLECULES 3.2.1 ORGANIC MOLECULES: molecules containing C and H in their structure INORGANIC MOLECULES.

The Molecules of Life Within cells, small organic molecules are joined together to form larger molecules Macromolecules are large molecules composed of.

The Molecules of Life Within cells, small organic molecules are joined together to form larger molecules Macromolecules are large molecules composed of.

Chapter 5 Mole Concept - Weeblyadil-tmsa.weebly.com/.../4/8/86480850/6....mole_concept1.pdf · 2019-10-10 · Chapter 5 Mole Concept. 1. Mole 2. Avagadro’s Number 3. Molar Mass

Chapter 5 Mole Concept - Weeblyadil-tmsa.weebly.com/.../4/8/86480850/6....mole_concept1.pdf · 2019-10-10 · Chapter 5 Mole Concept. 1. Mole 2. Avagadro’s Number 3. Molar Mass

Variation of Energy Bands with Alloy Compositionfolk.uio.no/ravi/cutn/semiphy/7.l8_carrier_const.pdfThe atomic mass of silicon is 28.1 g which contains Avagadro’s number of atoms.

Variation of Energy Bands with Alloy Compositionfolk.uio.no/ravi/cutn/semiphy/7.l8_carrier_const.pdfThe atomic mass of silicon is 28.1 g which contains Avagadro’s number of atoms.

Energy and Electron Transfer in Photochromic Molecules by ...€¦ · organic chromophores to photochromic molecules .Spectroscopic studies on these molecules show that these molecules

Energy and Electron Transfer in Photochromic Molecules by ...€¦ · organic chromophores to photochromic molecules .Spectroscopic studies on these molecules show that these molecules

Everything is made of Atoms -Richard Feynman Review of scientific notation A brief history of the atom Composition of Earth’s crust Avagadro’s Number How.

Everything is made of Atoms -Richard Feynman Review of scientific notation A brief history of the atom Composition of Earth’s crust Avagadro’s Number How.

Molecules and Compounds. Atoms Molecules Cells.

Molecules and Compounds. Atoms Molecules Cells.