Just wondered if ayone could give me a heads up to as what to expect.
This is what my teacher gave to us
"You will be asked to prepare a solution of copper(II) sulphate.
You will then carry out a number of chemical tests.
copper ions cu²+
copper metal"
What types of chemical tests are likely?
Its on thursday (teacher told us today!!!) so please help. I need to get this, the first two marks were not good enough and this is my last chance. help a guy in need wont you?
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3rd and final qualitative practical (ocr foundation) watch
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gregory14db
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- 19-01-2010 20:44
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- 20-01-2010 08:24
(Original post by gregory14db)
Just wondered if ayone could give me a heads up to as what to expect.
This is what my teacher gave to us
"You will be asked to prepare a solution of copper(II) sulphate.
You will then carry out a number of chemical tests.
copper ions cu²+
copper metal"
What types of chemical tests are likely?
Its on thursday (teacher told us today!!!) so please help. I need to get this, the first two marks were not good enough and this is my last chance. help a guy in need wont you?
Well, here are some head-ups,
1) Hydroxide test with copper II ions - what does it give? colour?
2) copper is fairly unreactive, or is it?
3) preparing solution of copper(II) sulphate, that would be part of your practical too, there might be some calculations on mol there. -
gregory14db
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- 20-01-2010 18:45
Um thanks I think. No yeah thanks alot, that helps. I put this up straight away and then looked through my books. I'm thinking displacement mol stuff and adding metals and the such
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- 20-01-2010 19:03
(Original post by gregory14db)
Um thanks I think. No yeah thanks alot, that helps. I put this up straight away and then looked through my books. I'm thinking displacement mol stuff and adding metals and the such
ie if you get wrong observations(or didn't get at all) then you couldn't or wouldn't be able to deduce what the questions might ask.
good luck! -
gregory14db
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- 21-01-2010 17:33
Did it this morning. Won't say what was in it because people do it at different times, but it was basic. 7 marks for observations, 2 for an equation (tricky one though) and 1 for deducing. I reckon i lost 1 mark on the deducement.
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- 21-01-2010 17:42
(Original post by gregory14db)
Did it this morning. Won't say what was in it because people do it at different times, but it was basic. 7 marks for observations, 2 for an equation (tricky one though) and 1 for deducing. I reckon i lost 1 mark on the deducement.
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