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given that ksp of MG(OH)2 is 0.000000000089,calculate the solubility of Mg(OH)2 in a solution buffered at pH=9
Q. Define Enthalpy and Calculate the Enthalpy of a system? Ans. Enthalpy is a measure of the total energy content of a system. It is represented by a big H. Change in ent
We performed a titration in the lab with mock gastric juice and potassium hydroxide. We titrated to end point and then to another colour change and noted both the volumes. We are n
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
Why was covalent compounds are insoluble in water and ionic compounds soluble in water? Ans) When ionic bonds form, one atom becomes positively charged, while the other becomes ne
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
The following has zero valency : (1) Sodium (2) Beryllium (3) Aluminium (4) Krypton Ans: Krypton
examples of dakin oxidation
chemical bonding
Q. Explain Dalton’s atomic theory? The atomic theory In 1808 John Dalton projected a theory to explain the laws of conservation of matter definite proportions and multiple prop
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