Semester+2+Feb+9-12

February 9-12 Chem 122-ethanol curve and calculation due tomorrow. Today we will be finding enthalpy change of reaction using the table of formation reactions. Please do question 9 from the handout. You were given two additional Hess's Law questions. p 536 #66, # 74 I gave you time to work on finishing our group work. Good practise when you are reviewing for a test: with Hess's Law p 537 #81 and #84 on p 537 Answers to hwk: #8a)- 851.5 kJ 8b) +131.3 kJ 8c) -524.8kJ 8d) -205.7kJ Today we work on group work on Hess's Law and using the table of formation values to find delta H There will be a Hess's Law quiz on Wednesday.
 * __Feb 9-Monday Day 9__.................................................** Scientist assignment is due thursday chem 111

Chem 112- Period 4-Today we will go over the scientist assignment: On a large sheet of paper...Include the name of the scientist, a diagram and their claim to fame. This is due on wednesday We will go on to the Quantum mechanical model of the atom and go over electron configuration. We looked at indicating the energy level, orbital and number of electrons in a particular orbital. I gave you a handout with the pre lab questions. This is due next week Period 3-we had an assembly. Could you do p 113-115 # 15 to 20

Chem 111-Lab Day 1 today. Do not forget the assigned work that was given out last week. This includes the scientist assignment which is due for Feb 12

__Chem 122__- Today you will get an introduction to a simple calorimeter and solution enthalpy. Please do #4 from the worksheet for this unit. We will complete the group work today. Page 526 25,26 p 526 27 to 30 Here are some documents to help you prepare for the test next week. (below Test Review Outline from The end of the Chapter Test Reviews MG Quiz on Hess's Law tomorrow
 * __‍Feb 10-Tuesday Day 10__**
 * Details
 * [[file:Group Work on heat flow and energy from phase change or enthalpy.doc|Download]]
 * 84 KB
 * Details
 * [[file:58 Enthalpy pairwork Ch17.PDF|Download]]
 * 68 KB

Period 3 - I introduced the Quantum mechanical model of the atom. You were also showed the diagonal rule. You were assigned the scientist assignment for Thursday. The prelab was handed out to you. This needs to be done for next Monday. Period 4- Today I introduced the diagonal rule and finished the quantum mechanical model. This section can be found in the textbook from page 164-166. Write the electron configuration for the following atoms As, Au and U. Also do page 113-115 15 to 20 Homework: p 119 #25-33 You will also see that the link below has a topic review sheet for test 1 which is scheduled for Wednesday Feb 18.
 * Chem 112-QUIZ ON METRIC AND LAB SAFETY TOMORROW **
 * BOTH CLASSES**

A few students were absent for electron configuration. Here is an abbreviation of the notes.




 * Details
 * [[file:electron configurationwith answers.doc|Download]]
 * 502 KB

Test Reviews

Chem 122- 1-First we will complete the problem from 58 in pairs from yesterday 2-We will complete calorimeter theory and then do a slightly new calculation with a bomb calorimeter. Please do #5(bomb calorimeter calculation) 3-You have a quiz on Hess's Law-1 question 4-If time permits.. More work with reaction calculations with heat of reaction and an equation is provided Please do 11 a and b for hwk it is like 14 and 15 from the text Test next wednesday on Ch 17 and energy calculations.. Calorimeter calculation: Need more practice? Extra Practise: A. A chemistry student dissolves 4.51 grams of sodium hydroxide in 100.0 mL of water at 19.5°C (in a calorimeter cup). As the sodium hydroxide dissolves, the temperature of the surrounding water increases to 31.7°C. Determine the heat of solution of the sodium hydroxide in J/mol.
 * Feb 11-Wednesday-Day 11**

B. A 2.50 g sample of zinc is heated, then placed in a calorimeter containing 65.0 g of water. Temperature of water increases from 20.00 Celsius to 22.50 Celsius. The specific heat of the zinc is 0.390 J/g oC. What was the initial temperature of the zinc metal samples.(we are going to assume that the final temp of the zinc and the water is the same.

C. A 5.23 g sample of coal(assume pure carbon) is placed in a bomb calorimeter that has a specific heat of 4.53 kJ/oC. If the temperature changes from 21oC to 28oC, find the Hc for the coal.

Chem 112- 1-Quiz today on metric and lab safety-We will spend half of the class doing a prelab for the first set of labs. 2-We will be checking over answers to theory questions from the textbook. You will have the opportunity to ask questions about any of the work you have done so far. You were given some time to work on your prelab in class. Remember to do the following(from yesterday)p 119 #25-33 Our test is next wednesday. 3-If time permits you will sign your contract. //**Please do not forget the course information form that needs to be signed by your**// Homework....to be assigned for tonight is p103 #1-7 and p 108 #8 to 14 HOMEWORK: The prelab sheet needs to be done on looseleaf and submitted on monday in order to start labs. If you need more practise with electron configuration try p 135 #8, 9 You will be given time to work on your prelab and the theory review

Test Reviews

Chem 111-Day 3 Labs


 * Feb 12-Thursday-Day 12 **

====== Day 12 Chem 122- Assignment on thermochemical equations is due on monday, however if you wish to hand it in early you will receive an extra 10%. We will review #11 then work on 10 ... Please do .#10 a) ans 1.99 x 10exp4 kJ, and #10b is for homework.. I introduced the last type of calculation today. The example that I went over in class is attached . Please do #13 tonight. The second question on propane is to be done on Monday night. I gave you the numerical answer for 10b and 11b. Please check the formulas for 10b ...it is combustion of hydrogen with oxygen to make water vapor. 13.(You will add 13 to your page). #13 What amount ( mass) of methane undergoing complete combustion is required to heat 100.0 L of water from 5 degrees celsius to 70 degrees celsius?

Here is another question like #13 to try What mass of propane must be burned to heat 2.50 L of water from 10 degrees Celsius to 800 degrees Celsius?

Chem 112 1-More time for prelab work and review page. 2-p 167 Do 10 to 15 3-You will receive your quizzes back on metric and lab safety. 4-Test on Wednesday Feb 19-please use review sheet to see topics to study. Do not forget the reviewvocabulary assignment for next Wednesday. __Next Monday__ -Lab Day 1 No open toes shoes and please bring your own eye glasses if you are a contact lens wearer. -Today(or yesterday) you will receive a vocabulary sheet to be passed in on day of test next wednesday(test day) This outlines the major theory items from the first unit. Lab Set One Lab 1/5 Metric lab-This lab involves working with measurement af area, finding the density of a shape and some challenging conversions Lab 2/6 Elements versus Compounds-This experiment involves using heat to break down compounds. You will find that it has a flaw in terms of trying to break down all compounds. You will become an expert at using the centigram balance. Lab 3/7 Candle Lab-This lab involves making observations and trying different techniques for dealing with candle wax combustion. Lab 4/8 Separation of Matter-This experiment involves using the varatious methods for separating matter to separate the components in an unknown mixture. Acuracy will be very important in this experiment

Chem 111-Day 4 labs

Friday Feb 13 No school for students

=Chem 111- Reminder...... quiz on metric conversion/lab safety tuesday= Absent today?? Here are some helpful documents.. ...................... ...........notes on half-life day 1..................................

1.We completed electron configuration and the Quantum mechanical model of the atom. Would you please do Pd and U as practise tonight 2. We worked on half-life today.Tthere are some theory notes on this on the chem 111 info link at the side of this page(or immediately below). You received a worksheet with calculations on it. Please try question #7. 3. You will a short assignment on ch 4 involving problem solving tomorrow. This will be due on wednesday.

Chem 111 info.

=== ‍Feb 14-Friday-Day 13 Valentines Chemistry SNOW DAY Please note that the test dates are still the same... === [] some elements that you have never seen before [] our universe has hearts in it

===CHEM 122 you have a test on thursday february 20.....please practise your calculations....also do not forget that is adviseable to have read through the chapter twice.===

1.We will start a new unit, Ch 18.1 Collison Theory/Dynamic equilibrium/rate of reaction/Activation energy diagrams Do p 547 1 to 5 Tonight 2, there is an outline under the test review link that is like the Study guide at the end of your chapter. There are also some practise problems linked as a document too. Please remember that there are several practise questions at the end of the chapter. We will do some more group review to practise certain key types of questions for the test. . Test Review Outline from The end of the Chapter Test Reviews

Chem 112-Lab Day 3

__Chem 111__- Today we spent more time on half life.We went over half life ...ex#2 where a percentage is given and radioactivity today as well. You also received an assignment on 4.3 to be done for tuesday.. You received another practise sheet with half-life calculations.



__Review of Scientists video__ []

__ [] __

[]

__ [] __



Here is the scientist video to help you review. It is very helpful for studying the Scientists from Unit 1 []

__ [] __

[]

__ [] __

57...... #1 a b #2 #4a................................................ #1a c #3# 4b

(H for chromium(III)oxide = -1139.7 kJ/mol) ...........(H for silver iodide decomp is 61.8 kJ/mol)

58........#1, #4...........................................................#2, #3

Review Outlines For Tests

= =

.

.Test next thursday on Ch 17 and energy calculations..

f



Test Reviews

Scientists and the atom []

Chem 111-We went over the Quantum Mechanical Model of the atom. I also did a Mega homework check ....for homework...please do some preliminary work on the scientists..... Would you please do As and U as practise tonight. Please bring a calculator with logarithms tomorrow as we will be working with half life. There will be a metric lab/ safety quiz on Friday.

rea ction calculations where a reaction is providing energy for heating water in a hot water tank.. we finished group work so I will do the following tomorrow.--> I also went over an example from the handout...#10a (ans. -3.35 GJ) and gave you time to do 11 b. in class. We will start candle mini lab on monday I also went over an example from the handout...#10a (ans. -3.35 GJ) and assigned 10b and 11b. This type of calculation is a combination of the other caclulations that we have done throughout the unit. There is a review assignment on naming due next wednesday. Here is a copy of it. __Safety People__ ...here are some notes... Please include #13 on your handout....It is an important type of calculation..... ..it has two pages
 * 1) 13 What amount ( mass) of methane undergoing complete combustion is required to heat 100.0 L of water from 5 degrees celsius to 70 degrees celsius?

We will get into new groups and do one station of group review for tuesday's test.

[]

Chem 112-Test on Unit 1 today Chem 111- Today we spent more time on half life. You also received an assignment on 4.3 to be done for tomorrow(you will get some time in class for starting this). I will also show you the scientist video from utube.

[|http://www.bing.com/videos/search?q=atom+song+utube&docid=416310296861&mid=054AB320F02EAE851BE4054AB320F02EAE851BE4&FORM=VIRE1#]

[]

Here is the scientist video I tried to show you today. It is very helpful for studying the Scientists from Unit 1 []

__ [] __

[]

__ [] __

A few students were absent for electron configuration. Here is an abbreviation of the notes.

Please do the following for homework as they were not assigned last week. Starting with p 521- 524 Do #23 to 25 and p 526 #27 to 31. Today we will be finding enthalpy change of reaction using the table of formation reactions. Please do question 9 from the handout. You were given two additional Hess's Law questions. p 536 #66, # 74 I gave you time to work on this in class. Good practise when you are reviewing for a test: with Hess's Law p 537 #81 and #84 on p 537 Answers to hwk: #8a)- 851.5 kJ 8b) +131.3 kJ 8c) -524.8kJ 8d) -205.7kJ Review of naming acids bases and ionic sheet

The group work will be started tomorrow:

You will start some more group work, this time it is on molar enthalpy and Hess's Law. 57...... #1 a b #2 #4a................................................ #1a c #3# 4b (H for chromium(III)oxide = -1139.7 kJ/mol) ...........(H for silver iodide decomp is 61.8 kJ/mol) 58........#1, #4...........................................................#2, #3..

===Sept 20-Friday=== Day 11.
 * Details
 * [[file:Test Review Ch17.pdf|Download]]
 * 207 KB
 * Details
 * [[file:Test Review Ch 17.docx|Download]]
 * 191 KB


 * Details
 * [[file:Ch 17 Good Ch 17 Practise 2007 BF 2 pages.pdf|Download]]
 * 114 KB

Sept24-Tuesday-Day 13
You were asked to do #6 and 7 from the purple sheet for tomorrow. The Hess's Law quiz will be done today Make sure that you do the propane question tonight.

We will get into new groups and do two stations of group review for monday's test.
[]

solution for #13 worked out Total energy [] [] Hess's Law []
 * Details
 * [[file:Test Review Ch17.pdf|Download]]
 * 207 KB
 * Details
 * [[file:Test Review Ch 17.docx|Download]]
 * 191 KB
 * Details
 * [[file:10a 11a and 13 from problem sheet Ch 17.doc|Download]]
 * 486 KB

Thursday Sept 26 Day 15 Chem 122- Test Energy/Enthalpy Unit Ch 17