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Calculate the pH of the solution by mixing 50 ml of N-HCl and 30 ml of N-NaOH solution assuming both to be completely dissociated in normal solution. ...
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The first four ionization energies of an element are 191, 578, 872 and 5962 kcal. The no. of valence electrons in the element is : a) 1 b)2 c) 3 d) 4 . (plz give some short method to solve this question….. plz…..) ...
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The ionisation constant of water is [H+][OH-]. Does this mean that whatever concentration os water we take, it will dissossiate into 10 -7 moles of H+ per litre and 10-7 moles of OH- per litre? ...
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What is the shape and hybridization of NH2-? ...
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What is the effect of adding inert gas to equilibrium? please explain. ...
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75 g of a metal reacts completely with 1 mole of Oxygen to form metal oxide, find the weight of metal-oxide formed. ...
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In a solid AB having the NaCl structure, 'A' atoms occupy the the corners of the cubic unit cell. If face-centered atoms along one axis is removed, then find the resultant stoichiometry of the solid. ...
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what is boundary method for transport number ...
replied2008-10-31 11:38:53
replied2008-10-25 01:52:18
replied2008-10-20 04:24:41