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If the velocity of hydrogen molecule is 5x 10 4 cm sec-1 then its de-Broglie wavelength is:
(1) 2 Å
(2) 4 Å
(3) 8 Å
(4)100 Å
Ans: 4 Å
50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(
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Electron configurations are governed by a limitation called as the Pauli Exclusion Principle: No two electrons can have the same value for all four quantum numbers n, l, m a
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