Thursday, October 10, 2013

Matter & Energy Quiz

Directions: You may need to use the reference tables to determine some values

and formulas. All work including formulas and substitution needs to be shown for any calculations.  The final answer should be rounded to the correct significant figures.  SHOW YOUR WORK.

Convert the following temperatures.
1.  50.o C =   ___________K         
2. melting point Hg= ____________ K  =   ___________oC

3.   Which of the following samples has the lowest average kinetic energy? (circle)

a.       5g Fe(s) at 5 K    

b.       10g Cu(s) at 0oC     

c.       1g Co(s) at 273K 

d.       50g Al(s) at  100oC

4.   What is the total amount of heat absorbed by 100. grams of water when the 

      temperature changes from 16.0oC to 20.0oC?

5.  Assuming the energy released into the water in question 4 originated from a  

    15.0g sample of sodium acetate as it crystallizes, what is the experimental  

     heat of crystallization (Hc) for sodium acetate?


Thursday, October 3, 2013

Dr Bein in for Dr Perry

Welcome.  I hope we have a productive time together.  I have posted my notes here for you to use.
Notes for Mater and Energy unit
This is a link to an online chemistry textbook.  This includes links to videos and is good coverage of the topics.  This book has more information than we need here, even for the honors classes.  So, just go to the topics covered and realize that there may be topics that you will not be responsible for, just like any textbook.

Thursday, June 17, 2010

6/17/10 It's all over now

 Finished grading the test last night.  Everyone that took the test passed it.  I will post it to Edline later.  Hope to see everyone on 7/10.

Wednesday, June 2, 2010

6/2/10 Review & Final test coming

Students should collect their lab reports and bring them into class on Friday.  These reports must be on file, according to NYS guidelines. 

There will be an in class final test on Monday and Tuesday June 7 & 8. This will include material from the entire year.This should help serve as final review.  It will count as a quarter test.  Additionally, any student that scores higher than they did on the midterm will geplace their midterm score with this score.  This test can really improve your grades, you should take it seriously. 

The Regents test will be given on Wednesday June 16 at Noon.  Students will have 3 hours to complete the test. 

On Thursday we will be doing a tie dye activity.  Students must being their own clothes item to dye.  

Monday, May 24, 2010

5/24/10 End of year schedule

  • On Tuesday May 25, we will take out final unit test on Acids & Bases. A makeup will be posted on Castle Learning .
  • On Monday and Tuesday June 7 & 8, we will take a class final test. This will include material from the entire year. It will count as a test grade for the fourth quarter. Additionally, it can count as a makeup for the midterm. If students score higher on this test than the midterm test, I will replace their midterm score with this one. There will be no makeup for this test.
  • The Regents test is on Wednesday June 16 at noon.
Students that have to make up labs can use search for the actual labs in the lab books in order to make up any missing lab reports. All lab reports must be turned in by June 1 and be satisfactorily done to be eligible for the Regents test. I have calculated that students may be missing up to 4 labs and still have enough lab time to take the test. Students have been notified in class as to which labs they are missing.

Monday, May 17, 2010

5/17/10 Acid Base & Review

We did a lab on Acid/Base indicators.

We reviewed material from the first section of the review book, the atom.

Students should do the next section of the review book, Formulas & equations. They should do the practice questions on p 43 & 44 for Thursday, 5/20.

Wednesday, May 12, 2010

5/12/10 Acids & Bases - Start Review

<- Don't enter the test this way.

To begin review for the Regents test, which will be given on Wednesday, June 16, 2010 at 12 noon, we will start to use the review books. Students should read pages 2 - 20 and answer the practice questions on p 21-23. This will be due on Monday 5/17. We will continue with another section every few days. You may work ahead at your own pace. Assignments will always be from the practice questions at the back of each section.

Students have to hand in any owed lab reports by 6/1 to be eligible to take the Regents test.

We will continue with the Acids & Bases Unit.