Mind maps or Concept Maps are acknowledged as scientific & effective learning tool worldwide. They give a snapshot of each chapter, presented in a flow chart that highlights the important co…Full description
Mind maps or Concept Maps are acknowledged as scientific & effective learning tool worldwide. They give a snapshot of each chapter, presented in a flow chart that highlights the important co…Full description
Mind maps or Concept Maps are acknowledged as scientific & effective learning tool worldwide. They give a snapshot of each chapter, presented in a flow chart that highlights the important concepts ...
Mind maps or Concept Maps are acknowledged as scientific & effective learning tool worldwide. They give a snapshot of each chapter, presented in a flow chart that highlights the important concepts ...
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Mind maps or Concept Maps are acknowledged as scientific & effective learning tool worldwide. They give a snapshot of each chapter, presented in a flow chart that highlights the important co…Full description
investigatory project on chemistry for class 12 CBSE on the topic composition of soft drinks
d Block Elements Qb
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Preparation of Ammonium copper (II) sulphate
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Class 12 chemistry handouts prem dhawan sir (D.P.S r.k.puram's best chem teacher)Full description
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very very helpfulFull description
ON THE TOPIC:- FOAMING CAPACITY OF SOAP TO STUDY THE CLEANING ACTION OF THE SOAPS AND TO ARRANGE THEM IN DECREASING ORDER OF CLEANING EFFECT. PLS MAKE THE NECESSARY CHANGES AND REMEMBER T…Full description
10/6/2014
CBSE Class 12 Chemistry Notes: d and f Block Elements – Copper (II) Sulphate Pentahydrate
CBSE Class 12 Chemistr y Chemistr y Notes: Notes: d and f Block Elements – Copper (II) Sulphate Pentahydrate July 5, 2013 by Neepur
AIPMT Online Study thedigilibrary.com/AIPMT Access PCB Online Online Video Lectures, Lectures, Tests & Notes, Notes, Free Registration! Registration! (I) Copper Copper (II) Sulphate Sulphate pentahydrate pentahydrate or blue blue vitriol, CuSO4.5H2O Preparation
In the laboratory, it is prepared by dissolving cupric oxide, cupric hydroxide or carbonate in dilute H2 SO4. CuO CuO + H2SO4 -> CuSO CuSO4 + H2O Cu(O Cu(OH) H)2 + H2SO4 -> CuSO CuSO4 + 2H2O CuCO CuCO3 + H2SO4 -> CuSO CuSO4 + H2O + CO2 The solution of CuSO4 thus obtained is concentrated concentrated and cooled cooled when crystals crystals of blue vitriol, CuSO4.5H2O http://schools.aglasem.com/?p=7702
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10/6/2014
CBSE Class 12 Chemistry Notes: d and f Block Elements – Copper (II) Sulphate Pentahydrate
separates out. Commercially it is prepared by the action of hot dilute sulphuric acid on scrap copper in the presence of air.
1. Action of heat
In CuSO4.5H2O, four H2O molecules are coordinated to the central Cu2+ ion. While the 5th one is attached between
and H2O molecule by hydrogen bonding. This fifth H2O molecule is thus deep inside the
crystal lattice and is not easily lost. 2. Action of alkalis
With NH4OH it forms tetraamminecopper (II) sulphate
3. Reaction with KI
The liberation of iodine in this reaction is quantitative. Therefore, this reaction is used to estimate copper volumetrically.
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CBSE Class 12 Chemistry Notes: d and f Block Elements – Copper (II) Sulphate Pentahydrate
Uses
(i) It is used as an electrolyte in electroplating, electrotyping and refining of copper. (ii) It is used in reservoirs and swimming pools to prevent the growth of weeds. (iii) It is used as a fungicide under the name Bordeaux mixture, which is a mixture of CuSO4 and slaked lime Ca(OH)2. (iv) Anhydrous CuSO4 is used for detection of moisture in organic liquids such as alcohol, ether etc
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CBSE Class 12 Chemistry Notes: d and f Block Elements – Copper (II) Sulphate Pentahydrate
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