Qualification > Sciences
Chemistry Help needed!:-(
butterfly_taz:
hey..i also need phy notes...n if anyone can get me business IT biology chemistry...it would be a great help..thanx... :)
Pharoah:
--- Quote --- why is ammonia produced?
o god learn you anion tests!!!!!!!!!!
because you add Al foil and make alkali with sodium hydroxde!! see last part of question!!!!!
and pharoah I think you are right but what's that go to do with hydrated salt?? that's what it says in ms!!
--- End quote ---
Evidence for it being a hydrated salt comes from the condensation at the top of the tube. When the salt is heated, water is converted into steam which again condenses to water on the cooler upper parts of the test tube. If it was not a hydrated salt, the condensation would not take place.
SGVaibhav:
if we only heat, wouldnt there be steam on the test tube that would be called condensation?
or is it the condensation that occurs after heating has been stopped?
Pharoah:
Condensation will occur on any cool surface. It doesn't matter whether heating is going on or not since glass is a very poor conductor of heat but more condensation will occur when heating is stopped as the surfaces get cooler.
SGVaibhav:
thanx for the info.
+rep
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