Ion tests (1 Viewer)

[withoutaface]

For the ion test question, for reagents I put Ba and Ag instead of Ba²⁺ and Ag²⁺. Do you reckon the marking scheme might be such that I get 0/3 for that question?
:S

 

[VVoody]

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

 

[grimreaper]

For the ion test question, for reagents I put Ba and Ag instead of Ba²⁺ and Ag²⁺. 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

 

[sub]

For the ion test question, for reagents I put Ba and Ag instead of Ba²⁺ and Ag²⁺. 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

 

[withoutaface]

OK sweet, thanks

 

[scruffy012]

i think i did Ag, Fe and Pb

not in and order

scruffy

 

[mervvyn]

i used AgCl with NH3, then HNO3 with (NH4)3Mo4O12 then BaCl2... hmmm.... that's what i was taught to put. ah well.

 

[nesta102]

URGENT!can i write deposit instead of preciptate?

 

[omg_a]

erm, i dont think deposit is the sqame thing, you might have to say precipitate, but then again i could only remember Ag, no idea for the other two.

 

[thaoroxy2001]

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

 

[mojako]

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]

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..