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Explain and Define standard feat of formation
Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formation ( Hf *)
50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(
NaH + H2O ->
HOW TO PREPARE IN EXAMS IN EASY MANNER?
Q. What is Hydrate Isomerism? In a compound, water molecules may be present in either coordinated form or as water of crystallisation In the former case water molecules are di
properties
The nature of bonding in graphite is: (1) Covalent (2) Ionic (3) Metallic (4) Coordinate Ans: Covalent
0.45 g of anhydrous oxalic acid is reacted with 50 ml of KMNO4 . Then normality of KMnO4 is??
Why the kmno4 is colored.?
stability of cr3+ions from fe3+ions in aqueous medium
the name of the group of metals that easily loses electrons
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