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Table lists data for water, crystalline sodium thiosulfate pentahydrate, and several sodium thiosulfate solutions. Find ΔH to the nearest 0.01 kJ for the dissolution of 5.00 g of crystalline Na2S2O3.5H2O in 50.0 g of water at 298.15K and 1 bar.
The frequency of radiation emitted when the electron falls from n= 4 to n=1 in a hydrogen atom will be (Given ionization energy of H = 2.18x 10 -18 J atom-1 and h= 6.625x 10-
Physical properties of Benzaldehyde (a) It is a colourless oily liquid. The boiling point of it is 179° C. (b) Benzaldehyde has smell of bitter almonds. (c) Benzaldehyde
Which electronic configuration is not observing the ( n+ 1) rule: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 1 , 4s 2 (2) 1s 2, sp 2 , sp 6 , 3s 2 , 3p 6 , 3
p-orbitals of an atom in presence of magnetic field are: (1) Two fold degenerate (2) Non degenerate (3) Three fold degenerate (4) None of these Ans: Non degenerate
8ml of NaOH solution were used to titrate 10ml of H2C2O4.2H2O,C(1/2H2C2O4.2H2O)=0.05ML.
Which of the following sets of quantum numbers is correct for an electron in 4f orbital: (1) n-=4, l=3. m+1, s= +1/2 (2) n-=4, l=4. m-4, s= -1/2
Geiger Marsden experiment The Rutherford experiment (also known as the Gold foil experiment or the Geiger-Marsden experiment) was an experiment to probe the structure of the at
Q. What is speed of light wave? Ans. Light is just one type of wave. Like all waves it can be characterized by frequency, wavelength and amplitude. Similarly, light waves ca
What is electron migration effects and mention their applications
how were anode rays discovered
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