Qualification > Sciences
CHEMISTRY PAPER 1 HERE
nid404:
--- Quote from: Petrol on June 11, 2009, 07:11:09 pm ---can u explain further ... and please are u 100%?
--- End quote ---
yes im 100% sure. See when the two react, KOH is in excess..it still remains in the solution after the reaction is over. The pH of the solution increases as the alkali is in excess. I've tried my best to explain it.
girl_92:
--- Quote from: nid404 on June 11, 2009, 07:14:03 pm ---
--- Quote from: Petrol on June 11, 2009, 07:11:09 pm ---can u explain further ... and please are u 100%?
--- End quote ---
yes im 100% sure. See when the two react, KOH is in excess..it still remains in the solution after the reaction is over. The pH of the solution increases as the alkali is in excess. I've tried my best to explain it.
--- End quote ---
luk man der is no other possibility by which the pH can increase so its simple tht KOH is in excess
igexam:
Could someone help me with question 20 in november 2008. I don't understand y ph should increase...
girl_92:
--- Quote from: igexam on June 11, 2009, 07:26:27 pm ---Could someone help me with question 20 in november 2008. I don't understand y ph should increase...
--- End quote ---
hcl is uesd up na so the pH will increase
Triple_A:
Nope......pH will decrease (acidic) bec nitric acid forms!
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