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Physical Chemistry
calculate the molarities of the solutions prepared by dissolving the following solutes in sufficient water to produce the given volumes of solution.
16.7 g CaCl^2 in 400.0 mL solution
16.7 g CaCl^2 in 400.0 mL solution
Physical Chemistry
For a certain reaction, it takes 5 minutes for the initial concentration of 0.5 mol/dm^3 to become 0.25 mol/litre and another 0.125 mol/litre. What is the order of the reaction ? What is the rate constant of the reaction ?
Physical Chemistry
1. Using Van der Waals equation, calculate the pressure exerted by 44g of CO2 at 0 degrees Celsius in a volume of (a)1.00dm3 (b)0.05dm3 (c) repeat the calculations at 100 degrees Celsius and 0.05dm3
2. To what temperature will a 20dm3 flask containing 1.6kg of oxygen be heated if the highest allowed pressure is 1.5 atm
3. Calculate the molar volume of acetylene at 92 degrees Celsius at 18.78atm if the contents of the Van der Waals equation are given as: a=4.390dm6 atm mol-2 and b=0.05136dm3 mol-3
2. To what temperature will a 20dm3 flask containing 1.6kg of oxygen be heated if the highest allowed pressure is 1.5 atm
3. Calculate the molar volume of acetylene at 92 degrees Celsius at 18.78atm if the contents of the Van der Waals equation are given as: a=4.390dm6 atm mol-2 and b=0.05136dm3 mol-3
Physical Chemistry
Every type of chemical bond contains a certain amount of energy. The total bond energy, which is essentially equivalent to the total potential energy of the system, is a quantity known as
Physical Chemistry
Write short notes:
a) Photoelectric effect
b) Gerade and Ungerade
c) Degenerate orbitals
d) Enantiomers
c) Chromophores
a) Photoelectric effect
b) Gerade and Ungerade
c) Degenerate orbitals
d) Enantiomers
c) Chromophores
Physical Chemistry
b) Write molecular orbital configuration for the following molecular ions. Comment
on the paramagnetic properties of these ions:
(i) N+2
(ii) N2-2
on the paramagnetic properties of these ions:
(i) N+2
(ii) N2-2
Physical Chemistry
a) Write electron configuration for the following ions:
(i) Fe3+ (ii) Cr3+ (iii) Pb2+ (iv) Pb4+ (v) O2-
(i) Fe3+ (ii) Cr3+ (iii) Pb2+ (iv) Pb4+ (v) O2-
Physical Chemistry
b) How long would it take for a sample of 222Rn that weighs 0.750 g to decay to
0.100 g? Assume a half-life for 222Rn of 3.823 days.
0.100 g? Assume a half-life for 222Rn of 3.823 days.
Physical Chemistry
a) Describe various types of radioactive decay.
Physical Chemistry
b) The force constant of 14N16O is 1550 N m1:
(i) Predict its bond order.
(ii) Calculate the reduced mass.
(iii) What is the fundamental frequency in cm1?
(iv) What will be the fundamental frequency if the O atom is isotopically labeled
as 18O?
(i) Predict its bond order.
(ii) Calculate the reduced mass.
(iii) What is the fundamental frequency in cm1?
(iv) What will be the fundamental frequency if the O atom is isotopically labeled
as 18O?
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#340153 on Dec 2023
#340153 on Dec 2023