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Solid xenon forms crystals with a face centered unit cell that has an edge of 620 pm.1. calculate the atomic radius of xenon.2. calculate the packing efficiency if xenon. Solution) 1) For fcc, edge = √8rTherefore, 620 = 2.82*ri.e., r = 620/2.82 = 219.86 pm2) For fcc, packing efficiency = 74%
Ernest Rutherford in 1909 conducted what is now a famous experiment where he bombarded gold foil with alpha particles (Helium nuclei). A source which undergoes for alpha decay is
calculate the voltage of the cell mg/mg+//cd2+/cd at 250c.when[cd2+]=7*10-11 M,[mg2+]=1.0M and standerd electrode potential=1.97V.
Q. The equilibrium cell potential of the galvanic cell is found to be E cell , eq = 1.410 V at 298.15K. The standard cell potential is E cell , eq = 1.360V. (a) Writ
Stability of gem diols lies on the following factors: (a) Steric hindrance by +I group around α-carbon decreases the stability of gem diols. +I group decreases stability of gem
Many ionic crystals dissolve in water because: (1) Water is an amphiprotic solvent (2)Water is a high boiling liquid (3) The process is accompanied by a positive heat of
Acid-base titrations - Types of titrations While the strength of an acid is determined along with the help of a standard solution of base, it is termed as acidimetry. Similarly
Advantage and disadvantage of westron
Dislocations-Linear Defects Dislocations are abrupt alters in the regular ordering of atoms, along a line (dislocation line) in the solid. They occur in high density a
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
The number of nodal planes in a Px is: (1) One (2) Two (3) Three (4) Zero Ans: One
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