CuSO4was dissolved in one beaker and hydrated copper sulphate
( CUSO4.5H2O ) was dissolved in another beaker. What heat changes do you expect in these
beakers and why?

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Solution

$C u S O_{4} + 5 H_{2} O \to C u S O_{4} . 5 H_{2} O A n h y d r o u s H y d r a t e d c o p p e r s u l p h a t e C o p p e r s u l p h a t e (c o l o u r l e s s) (b l u e) I t s a n e x o t h e r m i c r e a c t i o n . s o t h e r m o m e t e r s h o w s i n c r e a s e i n t e m p e r a t u r e . C u S O_{4} . 5 H_{2} O + H_{2} O \to C u S O_{4} . 5 H_{2} O_{(a q)} H e r e a l s o h e a t i s r e l e a s e d a s i s e x o t h e r m i c r e a c t i o n . B u t a s t h e s a l t i s a l r e a d y h y d r a t e d l e s s a m o u n t o f h e a t i s c o m i n g o u t . T h a t m e a n s t h e t h e r m o m e t e r s h o w s l e s s r i s e i n t e m p e r a t u r e .$

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Question 22

A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
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CuSO4was dissolved in one beaker and hydrated copper sulphate( CUSO4.5H2O ) was dissolved in another beaker. What heat changes do you expect in thesebeakers and why?

CuSO4was dissolved in one beaker and hydrated copper sulphate
( CUSO4.5H2O ) was dissolved in another beaker. What heat changes do you expect in these
beakers and why?