Work for Tuesday 1st March

As discussed yesterday I hope you have already spent some time completing the extension questions in your PAG folder.

Do make sure you return your folder to W9 before doing anything else!

I would now like you next to prepare for next week where we will carry out titrations.  In the resources folder is a powerpoint introduction, a guide to completing titration calculations and two question sheets with answers.

For next lesson please make notes on how to carry out a titration, complete the questions and mark them.  Bring all your work to our next lesson.

Thanks,
ERA

The link as always:

Work for Tuesday 1st March

Year 12 work today

Apologies I am not in today.  I hope to be back in school ASAP.

Please have a go at the past paper questions in the resources folder.  This is on top of the questions I asked you to complete for today.

In our lesson tomorrow I will check you have completed all the questions and you can ask me about anything you found difficult.

Thanks,

ERA

Qualitative Tests for Ions

Dear all,

I found this....

http://www.rsc.org/learn-chemistry/resource/res00002201/qualitative-analysis-a-guide-to-our-practical-skills-quizzes#!cmpid=CMP00007454

It has links to cool videos and I've requested some logins so you may access the quizzes etc to check that you understand it all.

Yours
Ms Elias

Ms Elias Absent until 08/02/2016

Y12 Chemistry Class

I’m sorry I am not in school this week. I intend to be back on Monday but whilst I am away please use the two hours that you would have spent with me reading up and making notes on testing for positive and negative ions. You will need to be able to use these tests confidently to identify a variety of unknown compounds in a practical assessment in the week before ½ term. This practical assessment will not contain details on how you carry out the tests, nor on how to interpret the results – you will need to work this out for yourself on the day.

You need to be able to test for the following substances, and write equations for these tests:

·         Carbonate ions (with acids)

·         Sulphate (VI) ions

·         Nitrate (V) ions

·         Halide ions (with aqueous silver ions followed by aqueous ammonia)

·         Sodium, Lithium, Potassium, Calcium, Strontium, Barium and Copper ions (with flame tests)

·         Copper (II), Iron (II) and Iron (III) ions (with sodium hydroxide)

·         Magnesium, Calcium, Aluminium and Ammonium (with sodium hydroxide, including the use of litmus paper where necessary)

Use your textbook, although I don’t have a copy at home and can’t give you the page numbers. You should also look at:

·         http://www.docbrown.info/page13/ChemicalTests/ChemicalTests.htm

·         http://www.ocr.org.uk/Images/208563-identifying-unknowns-delivery-guide.pdf (some parts of this document)

·         http://www.chemguide.co.uk/inorganic/group7/testing.html

·         http://www.chemguide.co.uk/inorganic/group1/flametests.html

·         http://www.chemguide.co.uk/inorganic/transition/iron.html

If you’re totally stuck I’m happy to help by email.

Yours

Ms Elias