Physical Chemistry Answers

Ne and Na+ which has more ionization energy???

Be, K, Na, Kr .arrange this element in Descending order to their ionisation energy. with explanations.

3% solution of glucose is isotonic with 1% solution of a non-volatile non-electrolyte substance. The molecular mass of the substance would be
1. 180
2. 360
3. 420
4. 60

Mole fraction of the solute in a 1.00 molal aqueous solution is
(1).177
(2).0177
(3).0344
(4)1.7700

The molarity of H2SO4 solution ,which has a density 1.84 g/cc at 35 Celsius and contain 98% by weight is
(1)1.84
(2)18.4
(3)20.6
(4)24.5
All are in M(molarity)

The molarity of solution containing 2.8% mass volume solution of KOH is
(1)M/10
(2)M/2
(3)M/5
(4)1M

The van der Waals constant "a" is a constant factor to a ideal gas law for the intermolecular attraction within a substance. List 1 contains the substances and list 2 contains value of "a"(L^2atm/mol^2)
List 1. list 2
(1)C6H6. (a).217
(2)C6H5CH3. (b)5.46
(3)Ne (c)18.00
(4)H2O. (d)24.060
Which one of the following combinations represents the correct matching of,the substance with the corresponding "a" value?
(1)a-1d-2c-3b-4
(2)c-1d-2a-3b-4
(3)d-1a-2b-3c-4
(4)b-1c-2a-3d-4.

What is the concentration of nitrate ions if equal volume of .1M AgNO3 and .1M NaCl are mixed together.
(1).1
(2).2
(3).05
(4).25
All are in M

Which of the following is not a redox change?
(1)2H2S+SO2=2H2O+2S
(2)2BaO+O2=2BaO2
(3)BaO2+H2SO4=BaSO4+H2O2
(4)2KClO3=2KCl+3O2

What volume of 1M H2SO4 is required to neutralize 10mL of a 1M NaOH solution?
(1)25
(2)20
(3)10
(4)5
All are in mL