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Aleysha82 March 26th, 2006 07:46

Help me please - Mass of Product from Mass of Reactant
 
I feel silly asking for help on this question but I have spent 2 hours reading and trying to figure it out myself. Hope you guys can help.

I will type the question and hopefully you can guide me to the correct answer.

Potassium Peroxydisulfate K2S2O8, and important industrial bleaching agent is produced by the reaction (NH4)2S2O8 + 2KHSO4 = K2S2O8 + 2NH4HSO4

What Mass (in grams) of K2S2O8 would be produced when 50.0G OF (NH4)2S2O8 reacts with 50.0g of KHSO4?

I did attempt trying to do it but I could understand the equation or the way of getting it done. The question before it asked for the Limiting Reagent between (NH4)2S208 and KHS04 which I worked it out to be (NH4)2S2O8.

Can anyone please help?

Thanks Aleysha

Terry March 27th, 2006 09:56

Think about it this way.
To make lemonade, I need 1 lemon and 8 ozs. water.
I have 4 lemons and 800 ozs water.
How much lemonade can I make?
4 X 8 = 32 ozs of lemonade cause the lemons are limiting.
Lots of water leftover, it helps me not in finding the yield.

Use the limiting reagent gms to figure the moles.
Use your balenced equation coefficients to get moles of product.
Convert to gms.

Hope that helps.

Terry


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