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ashleychan
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Zinc carbonate 2 zinc sulphate... Vide
PostSubject: Zinc carbonate 2 zinc sulphate... Zinc carbonate 2 zinc sulphate... EmptyWed May 20, 2009 12:34 am

Write the equation. Why excess ZnCO3 is used. How can u tell reaction has stopped? Why is filtration done after reaction stops? Why is filtrate not evaporated 2 dryness? Would a similar method b suitable for PbSO4 preparation??
Plzz help i dont get it...
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ShriyaOberoy
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ShriyaOberoy


Zinc carbonate 2 zinc sulphate... Vide
PostSubject: Re: Zinc carbonate 2 zinc sulphate... Zinc carbonate 2 zinc sulphate... EmptyWed Jan 13, 2010 7:44 pm

Its so simple,
ZnCO3=ZnO+CO2
on heating around 400C.
ZnO+H2SO4=ZnSO4+H2 Arrow
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