Qualification > Sciences
Chemistry Help HERE ONLY !!
lana:
no I'm right exothermic is when energy is given out so the temperature increases and endothermic is when energy is taken so the temperature decreases but i just misunderstood the question that's all ....!!!
unknown 101:
--- Quote from: lana on May 29, 2009, 04:01:38 pm ---no I'm right exothermic is when energy is given out so the temperature increases and endothermic is when energy is taken so the temperature decreases but i just misunderstood the question that's all ....!!!
--- End quote ---
actually the first time u asked was wrong , lol, but now u know the right concept, so stop makin a big fuss about it , haha,lol :P
idol2009:
Hey I got a question: how are organic/carboxylic acids made? Is it by acidifying, or is it by oxidizing with potassium magnanate(or another oxidizing agent, or both together? Just confused as to if both the methods are correct, and if they are supposed to be used together...
unknown 101:
--- Quote from: idol2009 on May 29, 2009, 04:08:09 pm ---Hey I got a question: how are organic/carboxylic acids made? Is it by acidifying, or is it by oxidizing with potassium magnanate(or another oxidizing agent, or both together? Just confused as to if both the methods are correct, and if they are supposed to be used together...
--- End quote ---
carboxlyic acids are usually made by oxidising alcahols ( it doesnt matter which oxidising agent u use)
unknown 101:
thats why u sometimes get a question in fermintation about why oxygen should not be present in the flask or container
and the ans is because it can oxidise the ethanol into ethanoic acid (vinegar)
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