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Q. Describe Molarity and Molality and what is the basic diffrence between Molarity and Molality?
The concentration of a solution is usually expressed as molarity (i.e., M). The higher the molarity of a solution, the more concentrated the solution. For example, a 3 M NaCl solution is more concentrated than a 0.1 M NaCl solution.
Sometimes molality is used to measure concentration. Molality (abbreviated m) is the number of moles of solute dissolved in 1000 grams of solvent.
The total magnetic quantum numbers for d-orbital is given by: (1) 2 (2) 0, ± 1, ± 2 (3) 0, 1, 2 (4) 5 ans: 5
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Highest melting point would be of: (1) He (2) CsCl (3) NH 3 (4) CHCl 3 Ans: CsCl
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Q. What is Oxidation Numbers? Ans. Chemists find it useful to describe the oxidation states of an element by means of oxidation numbers. The oxidation number of an element
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