Summary
Summary Table of tests needed for Unit 5 practical exam
- Module
- CH6 - A2 Practical Chemistry
- Institution
- WJEC
Table showing all the colour changes and products for the tests needed to know for the Unit 5 practical exam.
[Show more]
Seller
Follow
Content preview
Unit 5 Flame Test NaOH NaOH + Time Excess NaOH Na2CO3 Na2SO4 Conc HCl NH3 Excess NH3 KI KI + Time H2SO4Group 2 Mg 2+ White ppt White ppt Colourless sol
Ca 2+ Brick Red White ppt White ppt White ppt
Sr 2+ Crimson Some white ppt White ppt White ppt
Ba 2+ Apple Green Thin white ppt White ppt White ppt
Group 1 Li + Red All soluble
Na + Yellow/orange Colourless
K+ Lilac solution
Complexes [Cu(H2O)6]2+ [Cu(H2O)4(OH)2] [CuCl4]2- [Cu(H2O)4(OH)2] [Cu(NH3)4(H2O)2]2+ CuI + I2 CuI + I2
Blue/green Pale blue ppt Green sol Pale blue ppt Royal blue sol Brown sol & white ppt
[Co(H2O)6]2+ [Co(H2O)4(OH)2] [Co(H2O)4(OH)2] [CoCl4]2-
Pale pink sol Blue ppt PInk ppt Dark blue sol
AlCl3 Al(OH)3 [Al(OH)4]-
Colourless sol White ppt Colourless sol
Pb(NO3)2 Pb(OH)2 [Pb(OH)4]2- PbCl2 PbI2 PbSO4
Colourless sol White ppt Colourless sol Heavy White ppt Bright yellow ppt White ppt
TM [Cr(H2O)6]3+ [Cr(H2O)3(OH)3] [Cr(OH)6]3-
Blue/purple sol Pale green ppt Dark green
[Fe(H2O)6]2+ [Fe(H2O)4(OH)2]
Pale green sol Dark green ppt
[Fe(H2O)6]3+ [Fe(H2O)3(OH)3]
Yellow sol Red/brown ppt
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller emilyparker-jones. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.46. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now