Using the Ideal Gas Law In Chemical Reactions.

Slides:

Advertisements

Similar presentations

Chemical Calculations Prentice-Hall Chapter 12.2 Dr. Yager.

Advertisements

Chemistry 12.2.

Gas Stoichiometry Section 7.3 pg Gas Stoichiometry Many chemical reactions involve gases as a reactant or a product Gas Stoichiometry – the procedure.

 Stoichiometry Calculations. Mole to Mole Calculations  Aluminium bromide can be made by reacting aluminum foil with liquid bromine. How many moles.

Ideal Gas Law & Gas Stoichiometry

Prentice-Hall © 2002General Chemistry: Chapter 6Slide 1 of 41 Chapter 6: Gases Philip Dutton University of Windsor, Canada Prentice-Hall © 2002 General.

Gas Stoichiometry. Molar Volume of Gases The volume occupied by one mole of a gas at STP (standard temperature and pressure) –Equal to 22.4 L / mol –Can.

Laboratory 14 A CAPSTONE EXPERIENCE: TOWARD THE CREATION OF AN AUTOMOBILE AIRBAG.

Slide 1 of 41 Chemistry © Copyright Pearson Prentice Hall Slide 2 of Chemical Calculations The effectiveness of car’s air bags is based.

C. Johannesson Ch. 10 & 11 - Gases Gas Stoichiometry at Non- STP Conditions.

Gas Stoichiometry. We have looked at stoichiometry: 1) using masses & molar masses, & 2) concentrations. We can use stoichiometry for gas reactions. As.

Gas Stoichiometry Balanced chemical equations can be used to relate moles or grams of reactant(s) to products. When gases are involved, these relations.

Theoretical Yield, Actual Yield, and Percent Yield The amount of product we get if the reaction is perfect is called the theoretical yield. -- It is found.

Gas Stoichiometry. You know the drill… 1.Write the balanced chemical equation 2.State your givens Make sure your units are consistent (i.e. convert to.

Stoichiometry pg. 81. Mole to mass start with given use mole to mole conversions to get to moles use molar mass to convert to mass Determine the mass.

Ideal Gas Law and Stoichiometry Using moles and balanced reactions to relate to gas reactions.

Honors Stoichiometry Examples. Example 1 What mass of carbon dioxide in grams is needed to react with 3.00mol of H 2 O in the following photosynthetic.

Gas Stoichiometry Section 7.3 pg

Gas Laws Ideal Gas Law: PV = nRT where P = pressure V = volume

Bellwork: What is the volume, in liters, of mol of oxygen gas at 20.0ºC and atm pressure? V = ? n = mol T = 20ºC = 293 K P =

Ideal Gas Law and Stoichiometry

IV. Gas Stoichiometry at Non-STP Conditions (p )

Do Now Write the general equation for the following reactions:

Gas Quiz - Rd 1 PV = nRT R = L atm mol K P1V1 = P2V2 T T2

IV. Gas Stoichiometry at Non-STP Conditions (p )

12/10/99 Gas Stoichiometry.

Gas Stoichiometry.

Bellwork: What is the volume, in liters, of mol of oxygen gas at 20.0ºC and atm pressure? V = ? n = mol T = 20ºC = 293 K P =

Gas Stoichiometry.

Gas Stoichiometry Non-STP Conditions.

Gas Volumes and the Ideal Gas Law

Unit IV – Chapter 7 Section 7.3

IV. Gas Stoichiometry at Non-STP Conditions (p )

12/10/99 Gas Stoichiometry.

Gas Stoichiometry.

Volumes of Gases Aiming for 6: Calculate the amount in moles of gas in a given volume at room temperature and pressure, convert units. Aiming for 8: Predict.

Plan for Wed, 8 Oct 08 Mistake in Exam 1 key Lecture

Ideal Gas Law (Equation):

IV. Gas Stoichiometry at Non-STP Conditions (p )

Ch. 11: Molecular Composition of Gases

Molar Volume & Gas Stoichiometry

Gas Quiz - Rd 2 A reaction produces 455 mL of oxygen gas collected by water displacement at 22 oC and 735 mm Hg room air pressure. If water vapor pressure.

Chemistry 12.2.

Chemical Calculations

Chemistry 12.2.

Gas Stoichiometry at Non-STP Conditions

Section 2: Stoichiometric Calculations

IV. Gas Stoichiometry at Non-STP Conditions (p )

Gas Law Stoichiometry BHS-PS1-9 Level 4.

Chapter 11 Gases Part II.

Gas Stoichiometry.

Ch. 11 Molecular Composition of Gases

DRILL Besides mass what is conserved during a chemical reaction?

Gas Stoichiometry Moles  Liters of a Gas: Non-STP

I know you are SO happy you get to do stoichiometry again!

Gas Stoichiometry Moles  Liters of a Gas: Non-STP

12/10/99 Gas Stoichiometry.

12/10/99 Gas Stoichiometry.

12/10/99 N-34 Gas Stoichiometry

Stoichiometry of Gases

Gas Stoichiometry.

Chem Get HW stamped off Work on STP Gas Stoichiometry Warm Up Problems

Theoretical Yield, Actual Yield, and Percent Yield

Review Write your answer on a piece of paper:

Chapter 11 Gases Part II.

PVm = nRT Molar Volume: Vm = _____ 22.4 L 1 mol the ______ of ______

Before Bell Rings Chill out.

Presentation transcript:

Using the Ideal Gas Law In Chemical Reactions. Gas Stoichiometry Using the Ideal Gas Law In Chemical Reactions.

The Automotive Airbag The airbag is responsible for saving many thousands of lives and represents an important application of Gas Stoichiometry.

The Automotive Airbag

The Automotive Airbag The idea of providing protection for occupants of vehicles using some type of cushioning device is not new.

The Automotive Airbag Today’s modern airbag systems inflate in milliseconds and have proven so effective that they are now required on all cars sold in the USA and most other countries.

Most airbag systems use technology first developed by Mercedes Benz which uses a chemical reaction to produce a gas that inflates the bag.

The Automotive Airbag

Sodium azide (NaN3) decomposes rapidly into sodium metal and nitrogen gas. NaN3(s)  Na(s) + N2(g)

Sodium azide (NaN3) decomposes rapidly into sodium metal and nitrogen gas. 2 NaN3(s)  2 Na(s) + 3 N2(g)

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g)

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L

2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i

2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i mol N2 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i mol N2

2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i f mol N2 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i f mol N2

2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i mol NaN3 f mol N2 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L i mol NaN3 f mol N2

2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L h i mol NaN3 f mol N2 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 2 NaN3(s)  2 Na(s) + 3 N2(g) ? g 60. 0 L h i mol NaN3 f mol N2

60.0 L N2 x ----------- x ----------- x ----------- = g NaN3 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 60.0 L N2 x ----------- x ----------- x ----------- = g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. mol N2 mol NaN3 g NaN3 60.0 L N2 x ----------- x ----------- x ---------- = g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. mol N2 mol NaN3 g NaN3 60.0 L N2 x ----------- x ----------- x ---------- = L N2 mol N2 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = ? L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at STP. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x ------------- = 22.4 L N2 3 mol N2 1 mol NaN3 116.1 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg.

60.0 L N2 x ----------- x ----------- x -------------- = g NaN3 Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 60.0 L N2 x ----------- x ----------- x -------------- = g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. mol N2 mol NaN3 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = 22.4 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = NOT! L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 1 mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = NOT! L N2 3 mol N2 1 mol NaN3 (at non-STP conditions) g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. ? mol N2 2 mol NaN3 65.0 g NaN3 60.0 L N2 x ----------- x ----------- x -------------- = in 60.0 L N2 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg.

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT

PV = nRT n = ---------------- Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT n = ----------------

PV = nRT PV n = ---------------- RT Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT PV n = ---------------- RT

PV = nRT (758 mm)(60.0 L) n = ----------------------- RT Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- RT

PV = nRT (758 mm)(60.0 L) n = ----------------------- R (298 K) Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- R (298 K)

n = ----------------------- Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- (62.4 mm L/mol)(298 K)

n = ----------------------- Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- (62.4 mm L/mol K) )(298 K)

n = ----------------------- Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- (62.4 mm L/mol K) )(298 K)

n = ----------------------- Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT (758 mm)(60.0 L) n = ----------------------- (62.4 mm L/mol K) )(298 K)

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. PV = nRT n = 2.45 mol

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 2 mol NaN3 65.0 g NaN3 2.45 mol N2 x ----------- x -------------- = 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 2 mol NaN3 65.0 g NaN3 2.45 mol N2 x ----------- x -------------- = 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 2 mol NaN3 65.0 g NaN3 2.45 mol N2 x ----------- x -------------- = 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. 2 mol NaN3 65.0 g NaN3 2.45 mol N2 x ----------- x -------------- = 3 mol N2 1 mol NaN3 106.2 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 g NaN3

Detemine the mass of sodium azide needed to produce 60.0 L of N2 at 25.0 oC and 758 mm Hg. (758 mm) 2 mol NaN3 65.0 g NaN3 60.0 L N2 x -------------- x ----------- x -------------- = (62.4mm L/mol K) (298K) 3 mol N2 1 mol NaN3 106.0 g NaN3