Chemy latestNEWS

Your latest homework includes:

Have a great life!

Updated July 17th
----------------------------------------

Explain how a buffer resists change in pH when a) acid is added & b) alkali is added 2 lines & 2 marks for a) and five lines and three marks for b)

Updated July 10th
----------------------------------------

Use your titration data to determine the Ka for ethanoic acid
Use this Excel file if you missed the experiment
When half the acid has been neutralised pH  = pKa of the acid
To find Ka on your calculator: 10x   pKa
HINT: how many cm3 of NaOH is needed to neutralise all the acid?

Updated July 4th
----------------------------------------

Use your experimental data to draw conc/time graphs and then use tangents to determine the initial rate for the sets you did

Updated June 27th
----------------------------------------

Complete the ten pH calculations for weak acids

Updated June 26th
----------------------------------------

Draw a time/concentration graph for the acid/thiosulphate reaction and determine the order of the reaction wrt [Na2S2O3]

Updated June 25th
----------------------------------------

Everyone to complete the Kinetics worksheet (thanks, Mr Soldi) and all those who were not there on Wednesday to do the "Practice" test.
If you got less than 70% in today's rates test you will have to resit the rates test either on Monday lunchtime [13:10 - 13:30, G21] or on Tuesday after school [3:00 to 3:20 in G21]

Updated June 22nd
----------------------------------------

Thanks to all the Young Enterprisers who DIDN'T tell me they'd be away, the Rates test will now be on Friday, 22nd of June [re-sit 70%]

Updated June 20th
----------------------------------------

Complete the final rates past paper question from the booklet [from the Jan 04 paper]
There will be the end of topic test on Wednesday, 20th June

Updated June 18th
----------------------------------------

Complete the next THREE rates past paper questions from the booklet [latest being the one with the full page graph]

Updated June 15th
----------------------------------------

 CAREFULLY draw a concentration/time graph from Q4 in the text book [Kinetics topic, p193 in old edition]. We need it for tomorrow's lesson when you get some very interesting information from it!

Updated June 11th
----------------------------------------

Revision!
To help you do very well I have uploaded notes for unit 2 and unit 3 on the CHEMY front page. The passwords for the unit 2 notes are in this file called "Passwords" [right-click and "Save target as..."] the document is protected with the same password as the unit 3 notes. All the letters are capitals
If you are having problems please
email me
Use the notes and marked-past papers only to revise from
Don't
use a text book and Don't use your notes!
Revise for both units - don't spend too much time on the bits you like!
Practice
the energy cycle calculations. Make sure you're 100% certain about what's subtracted from what
Learn
the equations - practice writing them out; three or four are always asked for
Practice
the mechanisms - one always comes up
Print out copies of recent past papers and try them without notes. See what you get wrong
Make revision ACTIVE.
Do things.  DON'T just read
Good luck

 Updated May 16th
----------------------------------------

You may find the notes for module 2 helpful. Right-click the link of the front page of "Chemy" and "Save target as...". They are all password protected and you'll get the pass word if you get 71% or more in the Module 2 mock which will be next week [Dr Adams to decide the day - that means no warning!]

 Updated May 8th
----------------------------------------

Make sure you have done the last THREE past papers in the booklet by Wednesday (3rd).
You can bring the flow chart already done to the Planning write-up on Friday.
Advanced warning:
The Module 3 mock will be on Friday, May 11th.
Only people with 71% or more will be given passwords to open the notes which are now online!

 Updated May 1st
----------------------------------------

Don't spend too much time on the Planning exercise! You may find the mark scheme for the June 2003 exam helpful. Right-click this LINK and "Save target as..." if you want to down load it. Complete the last past paper in the booklet for Monday ... without fail!

 Updated Apr 28th
----------------------------------------

Wishing you all a most enjoyable Easter. The unit 2 mock will be on Tuesday, 17th of April.  In preparation, please make sure you have done all the PP questions we've done in class or for homework.
The "resit" mark will be 75%

 Updated Mar 28th
----------------------------------------

Using your exptal data calculate the enthalpy change for the four alcohols you tested and extrapolate a value for hexan-1-ol
Spot test - 
definitions

 Updated Mar 25th
----------------------------------------

Learn the definitions for formation & combustion and complete the formation & combustion "Xtras" on the Chemy front page

 Updated Mar 22nd
----------------------------------------

Write up the experiment on hydrolysis of halogenoalkanes
Fill ALL remaining gaps in the Unit 2 past papers booklet!
Prepare for the Alcohols & halogenoalkanes test for Tuesday, 27th period 5
Spot test -  reactions of halogenoalkanes

 Updated Mar 18th
----------------------------------------

Jun 2004 Q2 & Q4  complete in the booklet
Spot test -  reactions of alcohols (incl mechanism)

 Updated Mar 15th
----------------------------------------

Jun 2005 Q2 - Q4  complete in the booklet
Spot test -  reactions of alkenes (incl addition mechanisms)

 Updated Mar 9th
----------------------------------------

Jan 2005 Q3 - Q4 complete in the booklet
Spot test -  reactions of alkanes (incl substitution mechanism)

 Updated Mar 2nd
----------------------------------------
Jan 2004 Q2 - Q4  complete in the booklet

 Updated Feb 24th
----------------------------------------

Wishing you all a most enjoyable extended half-term. The test will now be on Tuesday, 20th of February and will included questions on: Alkanes, HC fuels & Alkenes In preparation, please make sure you have done all the PP questions we've done in class or for homework. The "resit" mark will be 70%

 Updated Feb 8th
----------------------------------------
Jun 2005 Qs 2 & 3
Jan 2005 Q3 & Q5 - complete in the booklet

 Updated Feb 5th
----------------------------------------

Complete notes on the three topics to be tested in the first lesson of next half-term [Period 1, Monday Feb 19th]: Alkanes, HC fuels & Alkenes (use the coloured print-out to help you do the first two parts)

 Updated Feb 2nd
----------------------------------------
Jun 2004 Qs 1 & 3
Jan 2004 Qs 3 & 5
Jun 2003 Q1 & Q5 - complete in the booklet
Spot test -  reactions of alkenes (incl addition mechanism)

 Updated Jan 29th
----------------------------------------
Jun 2003 Q3 - complete in the booklet
Write a mechanism for the reaction between propene and bromine
Write a mechanism for the reaction between but-2-ene and hydrogen bromide

 Updated Jan 26th
----------------------------------------
Jan 2003 Q1 - complete in the booklet
Do careful diagrams to show sigma & pi bonding in ethene

 Updated Jan 24th
----------------------------------------
Write notes on cracking, reforming & isomerisation explaining carefully why each process adds value to a barrel of crude oil

Prepare a 1 minute talk on one of them

 Updated Jan 21st
----------------------------------------
Jun 2003 Q3 - complete in the booklet
Spot test -  reactions of alkanes (incl substitution mechanism)

 Updated Jan 18th
----------------------------------------
Jan 2003 Q1 - complete in the booklet
Write a mechanism for the reaction between ethane and bromine in the presence of UV light

 Updated Jan 16th
----------------------------------------
Write skeletal formulas for all the structural & displayed formulas in your journal (include names with each)

 Updated Jan 15th
----------------------------------------
Write up the experiment with Br water and hexane & hexene - include balanced equations

 Updated Jan 14th
----------------------------------------
Name and draw all possible isomers of C5H12

 Updated Jan 12th
----------------------------------------
Revise for the Mock on Monday!
Revise for the Mock on Tuesday!

 Updated Jan 8th
----------------------------------------
Revise for the Mock on Tuesday ... it's easier than the last one!

WARNING:

CHEMY.CO.UK

will be closed for re-furbishing over the Christmas holidays ... make sure you have all the past papers and mark schemes by December 15th

Updated Dec 8th
----------------------------------------
Revise for the Mock on Monday!

 Updated Dec 1st
----------------------------------------

There will be a "Periodic table" test on Friday, Dec 1st. It will last 30 minutes. The "resit" mark this time will be 70%

Try the additional practice calculation papers on the Chemy home page

Check out important mock dates & the schedule for YOUR presentations by clicking here. Make sure you include at least TWO questions from the past papers (with answers)

Updated Nov 25th
----------------------------------------

There will be a "Calculations re-test" for everyone on Friday, Nov 24th. It will last 20 minutes. The "resit" mark this time will be 75%

You can see the schedule for YOUR presentations by clicking here. Make sure you include at least TWO questions from the past papers (with answers)

Don't forget that all your past paper questions are to be completed by Friday 24th. I will be collecting-in everyone's folders for checking over the week-end. Make sure all the SIX past papers are completed AND marked

Updated Nov 21st
----------------------------------------

"Revision notes" on each section of the Periodic Table topic are now on the site so there's no need to make your own!

There will be a "Calculations test" on Friday, Nov 17th. It will last 20 minutes. The "resit" mark will be, as usual, 70%

Updated Nov 14th
----------------------------------------

With the final part of Unit 1 finished this week you need to consolidate all the work we have done this term. In particular you should now be able to complete ALL the questions from the past papers you've downloaded

With this in mind, I will want to see your folders with completed notes AND completed and marked, past papers by Friday, November 17th

There will be a test on "Structure and bonding" on Monday 13th and will last 30 minutes

You can see the schedule for YOUR presentations by clicking here. Make sure you do it thoroughly (as others will be relying on you) and you should include at least TWO questions/parts of questions from the past papers (with mark schemes) in your presentation

Updated Nov 6th
----------------------------------------

Notes, definitions and all the exam questions on the first part of the module must be done AND marked for the years Jan 2002 to Jan 2005 (inclusive)  by Monday 30th October. Topics now completed are: chem calculations, atomic structure and bonding (incl shapes & van der Waals')

Oh ... have an enjoyable half-term ;o)

Updated Oct 17th
----------------------------------------

All "Bonding" questions done AND marked for the years Jun 2003 to Jan 2005 (inclusive) to be complete by Monday 16th October - you must bring your completed folder to this lesson. There will be short test on this section of the syllabus at the start of the Monday lesson!

Updated Oct 9th
----------------------------------------

Notes, definitions and all the Atomic structure questions done AND marked for the years Jan 2002 to Jan 2005 (inclusive) to be complete by Friday 6th October - you must bring your completed folder to this lesson. Failure will result in a 1 hour, Tuesday evening detention!

Updated Oct 1st
----------------------------------------

Complete all the calculations in the 14 page booklet by Monday, Oct 2nd

The Atomic structure test will be during Period 1 on Monday, October 9th

The link to the past papers has been repaired and the Foundation papers are again available!

Updated Sept 27th
----------------------------------------

You have to be able to answer the following questions (without looking at your notes!):

Explain the change in atomic radius across the 3rd  period

Explain the general change in 1st IE across the 3rd  period

Explain why the 1st IE of Al is lower than that of Mg

Explain why the 1st IE of S is lower than that of N

Start getting your notes into shape. For the Foundation module you need 5 dividers. For Atomic structure, print out the notes from the website and print out and do at least ten "Atomic structure" questions from the past papers and correct them using a red pen (see the mark schemes for this). I will want to see these while you're doing the end of topic test!

The Atomic structure test will be during Period 1 on Monday, October 9th

Updated Sept 26th
----------------------------------------

Download the file named "Energy levels HW" and complete the task. Instructions are on the sheet

Updated Sept 23rd
----------------------------------------
You  should now have downloaded both Jan & June Foundation past papers for 2001 and 2002 (that's four!) together with their mark schemes
and have printed out a copy of questions 1 & 2 for each paper (that's eight!)

Write, neatly and NOT in your journals, the electronic configurations for the elements up to Kr

Complete the 10 mole calculations ... following the same methods as I showed you on the board

Failure to complete (any) three homeworks in a term will get you a one hour after-school detention!

Have a great rest-of-the-week

UpDated Sept 20th
---------------------------------------------

You  should now have downloaded both Jan & June Foundation past papers for 2001  together with their mark schemes
and have printed out a copy of question 1  for each paper

UpDated Sept 12th

 

 

Email for help with any of the topics covered on this site.               .

web page hit counters
Staples.com Coupons