Physical Chemistry Answers

Cisplatin, an anticancer drug, has the-molecular formula Pt(NHbase3)base2*Cl(base2). What is the mass (in gram) of one molecule ? (Atomic weights : 195, H = 1.0, N = 14, Cl 35.5)

Calculate the standard enthalpy of solution of sodium chloride, given that, the lattice energy is -784 KJ/ mol and that the hydration energy is -783 KJ/ mol

(a) Draw a well labelled Bom-Haber cycle for the formation of one mole of magnesium oxide (solid) identifying all the standard energy changes involved.
(b) Describe any experimental set-up that could be used to determine any one of the named energy changes in (a) above.

Draw a well labeled Bom-Haber cycle for the formation of one mole of magnesium oxide (solid)
identifying all the standard energy changes involved.

What do you understand by
i)Relative atomic mass?
ii)isotopes?

Calculate the potential for the half cell made up of zinc in 0.02M ZnSo4 solution at 298k if the So is 0.763v

Calculate the vapour pressure of a solvent above a solution containing 83.99g of solute x(molecular weight 195.62) per 1200g of h20 at 20°c.the vapour pressure of h2O at 20°c is 17.53mmhg

What is the boiling point of benzene under certain pressure condition is 80.1°c .calculate the boiling point of a solution containing 5g of solute x in 100g of benzene under the same pressure condition given that KB = 2.6°c per 100g of benzene and molar mass of solute x is 229.

A 1litre vessel which is equipped with a movable piston is filled with a 2M aqueous solution of h2O2.the h2O2 decomposes to h2O and O2 is a first order process with half life 5 hours at 300K.as gas formed the piston moves upward against external pressure of 1atm.calculate work done by the gas from the start of 6hours till the end of 15 hours