Ion tests (1 Viewer)

withoutaface

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For the ion test question, for reagents I put Ba and Ag instead of Ba<sup>2+</sup> and Ag<sup>2+</sup>. Do you reckon the marking scheme might be such that I get 0/3 for that question?
:S
 

VVoody

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One of my friends put Ag+ as one of them. Don't know which one though. I think you'll get at least 1 :p
 
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grimreaper

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withoutaface said:
For the ion test question, for reagents I put Ba and Ag instead of Ba<sup>2+</sup> and Ag<sup>2+</sup>. Do you reckon the marking scheme might be such that I get 0/3 for that question?
:S
thats the sort of thing youll lose one mark for, you should still get 2/3 I reckon... The Ag+ was for detecting Cl- while to the solution had to be basic for Ba will only detect PO4- in basic conditions
 
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sub

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withoutaface said:
For the ion test question, for reagents I put Ba and Ag instead of Ba<sup>2+</sup> and Ag<sup>2+</sup>. Do you reckon the marking scheme might be such that I get 0/3 for that question?
:S
hey dude, its Ag+, not 2+, but yeah u wont get 0...unless its one mark for each...but then that's slack...u might get a correct from previous error tho...thats the most likely case :p
 

thaoroxy2001

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hey....for the Phophate test would I lose the mark if I wrote Ammonium molybdenum heated with nitric acid instead of Ammonium molybdenate
 

mojako

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Hmm.. do you need to give colour of the precipitate?
I just wrote "forms precipitates" in the Observations column LOL
except for the third one where I was sure it was white.
 

beverly

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mojako said:
Hmm.. do you need to give colour of the precipitate?
I just wrote "forms precipitates" in the Observations column LOL
except for the third one where I was sure it was white.
i was wondering too..hope not..
 

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