The degree of dissociation of CH3COOH is influenced by
Either of these
Sulphide ions in alkaline solution react with solid sulphur to form polyvalent sulphide ions. The equikibrium constant for the formation of C and S32- from S and S2- ions are 1.7 and 5.3 respectively. Equilibrium constant for the formation of S32- from S32- and S is
Which species acts as stronger acid than formic acid in aqueous solution?
Which is not amphoteric?
Which is correct w.r.t non-ideal solution?
Solution obeys Raoult's Law over the entire range of concentration.
The vapour pressure is always higher than that predicted by Raoult's Law
The cause for the deviations lie in the nature of interactions at the molecular level
All of these
When 20g of CaCO3 were put into 10 litre of flask and heated to 8000 C , 35% of CaCO3 remained unreacted at equlibrium. KP for decomposition of CaCO3 is :
What is the PH of a 1M CH3COONa? Ka of acetic acid=1.8x10-5,Kw=10-14 mol2/l2
The mass of present in 100 ml of its 0.25 Molar solution is
The von't Hoff factor for 0.1M Ba solution is 2.74. The degree of dissociation is
The values of Van't Hoff factors for KCl, NaCl, and K2SO4 are
The unit of Ebulioscopic Contant is
K Kg mol-1 or K(molality)-1
mol Kg K-1 or K-1 (molality)
Kg mol-1 K-1 or K-1 (molality)-1
K Mol Kg-1 or K (molality)
The solubility products of Al(OH)3 and Zn(OH)2 are 8.5x10-23 and 1.8x10-14 respectively. If NH4OH is added to a solution containing Al3+ and Zn2+ ions, then substance precipitated first is
None of these
The self ionisation constant for pure formic acid, has been estimated as 10-6 at 1.22g/cm3.
The percentage of formic acid molecules in pure formic acid converted to formate ion is
The relative lowering of vaour pressure produced by dissolving 71.5 g of a substance in 1000 g of water is 0.00713. The molecular weight of the substance will be
The reaction quotient ( ) for the reaction is given by:
N2(g) + 3 H2(g) 2NH3;
The reaction will proceed from right to left if:
The PH of boiling water (373k) is ............(Kw at 373K=10-12)
The mole fraction of ethylene glycol (C2H6O2) in an aqueous solution containing 10% of C2H6O2 by mass
The mole fraction of 20% (mass/mass) Kl (aq) is (density of kl(aq)= 1.202gml-1)
The molality of 2.5 g of ethanoic acid (CH3COOH) in 25g of benzene is
The molalility of a 15 % (w/v) solution of of density of 1.1 approx is