Chm II Drill: Calculate the mass of (NH4)2SO4 in mg produced when 1 Chm II Drill: Calculate the mass of (NH4)2SO4 in mg produced when 1.12 mL NH3 gas reacts is excess H2SO4 in the following rxn: NH3 + H2SO4  (NH4)2SO4

Review Drill & Stoichiometry Test

Water of Crystalization Lab Due Tomorrow

Chm II Homework Review PP-11 Complete the worksheet attached to the Poly website.

Are there any questions on previous material?

Kinetic Theory

All matter is made up of tiny particles The particles are in constant motion All collisions are elastic

Pressure

Force per unit area Caused by collisions against a surface Gas measured in pressure

Units of Pressure kPa: kilopascal (Std Unit) Pascal: newton/sq. meter Atmosphere (Atm): mm Hg:

Standard Pressure 101.3 kPa (to be changed) 1.00 Atm 760 mm Hg or Torrs 30.0 inches Hg 1013 millibars

Gas Laws

State the Following Laws Boyle’s Law Charles’ Law Gay Lussac’s Law Dalton’s Law Graham’s Law

Boyle’s Law

The pressure & volume of a gas at constant temperature are inversely proportioned P1V1 = P2V2 = K

Charles’ Law

The volume and temperature of a gas at constant pressure are directly proportioned V1 V2 T1 T2 = = K

Guy Lussac’s Law

The pressure and temp. of a gas at constant volume are directly proportioned P1 P2 T1 T2 = = K

Combined Gas Law

Combination of the three formulas P1V1 P2V2 T1 T2 =

Common Sense

A gas’s volume is directly proportioned to its number of moles V1 V2 n1 n2 = = K

New Combination P1V1/n1T1 = P2V2/n2T2 = K

New Combination P1V1 P2V2 n1 T1 n2T2 = = K

Ideal Gas Law PV = nRT

Dalton’s Law

The total pressure = the sum of the partial pressures PT = P1 + P2 + etc

Graham’s Law

The velocities of particles are inversely proportioned to the square root of their masses v1 M2 v2 M1 =

Calculate the new volume of 5 Calculate the new volume of 5.0 L of gas when its pressure is doubled and its temperature is tripled:

Calculate the volume of a gas at STP when it occupies 150 Calculate the volume of a gas at STP when it occupies 150.0 mL at 227oC under 303.9 kPa pressure:

Calculate the volume of 3.0 moles of gas at -23oC under 83.1 kPa pressure.

Drill: Calculate the volume of a gas at STP when it occupies 80 Drill: Calculate the volume of a gas at STP when it occupies 80.0 mL at 273oC under 303.9 kPa pressure:

Drill: Calculate the number of moles of gas occupying 831 mL under 250 kPa at 227oC & Pass in Lab

Review & Collect Drill & HW

CHM II HW Review PP 11 Complete the attached worksheet

Are there any questions on previous material?

Calculate the volume of a gas at STP when it occupies 80 Calculate the volume of a gas at STP when it occupies 80.0 mL at 273oC under 303.9 kPa pressure:

Calculate the ratio of the velocities of He gas to HCl gas:

Calculate the mass of CO2 occupying 83.1 mL under 25 GPa at 227oC

Calculate the molecular mass of 5 Calculate the molecular mass of 5.0 g of gas occupying 831mL under 250 MPa at 227oC

Ideal Gas Law PV = nRT

Related Formulas m V m/n D or r = MW =

MW = m/n n = m/MW PV = nRT

mRT MW PV PV = MW =

Drill: Calculate the volume in mL of 4 Drill: Calculate the volume in mL of 4.0 g bromine gas at 127oC under 83.1 kPa pressure.

Review & Collect Drill & HW

CHM II HW Review PP 11 Complete the attached assignment & turn it in tomorrow

Are there any questions on previous material?

Discuss Lab

Calculate the density of carbon dioxide at 27oC under 83 Calculate the density of carbon dioxide at 27oC under 83.1 kPa pressure

Other Integrated Formulas

m V mRT PV D = MW =

m V m RT V P D = MW =

DRT P MW P RT MW = D =

The total pressure of a system is 120. 0 kPa The total pressure of a system is 120.0 kPa. The partial pressure of gas A is 112.0 kPa. Determine the pressure of gas B

Drill: Calculate the ratio of the velocities of He gas to HCl gas:

Calculate the mass of 831 mL of CO2 at 27oC under 150 kPa pressure:

Drill:Calculate the volume of 4. 0 moles of gas under 83 Drill:Calculate the volume of 4.0 moles of gas under 83.1 kPa pressure at 127oC:

Review & Collect Drill & HW

Are there any questions on previous material?

Calculate the volume of a gas at STP when it occupies 80 Calculate the volume of a gas at STP when it occupies 80.0 mL at 127oC under 303.9 kPa pressure:

5 Calculate the volume of 4. 0 moles of gas under 83 5 Calculate the volume of 4.0 moles of gas under 83.1 kPa pressure at 127oC:

Calculate the molecular mass of 50 g of gas occupying 831mL under 250 MPa at 227oC

Calculate the mass of 831 mL of CO2 at 167oC under 150 kPa pressure:

The total pressure of a system is 120. 0 kPa The total pressure of a system is 120.0 kPa. The partial pressure of gas A is 112.0 kPa. Determine the pressure of gas B

The total pressure of a system is 150. 0 kPa The total pressure of a system is 150.0 kPa. The system contains 50 % A, 30 % B, & 20 % C. Determine the pressure of each gas.

Drill: Calculate the mass of CO2 occupying 83 Drill: Calculate the mass of CO2 occupying 83.1 mL under 25 MPa at 477oC

Calculate the density of carbon dioxide at 27oC under 83 Calculate the density of carbon dioxide at 27oC under 83.1 kPa pressure

Calculate the velocity HBr when the velocity Be is 270 m/s:

Calculate the final volume that 3 Calculate the final volume that 3.0 L of gas will obtain when the absolute temperature is tripled & the pressure is halved.

Calculate the mass of CO occupying 831 kL at 227oC under 2 Calculate the mass of CO occupying 831 kL at 227oC under 2.50 Mpa pressure.

Calculate the volume of H2 formed at 27oC under 150 kPa when 6.8 mg NH3 decomposes making N2 & H2.