analytical chemistry
37% weight of HCl and density is 1.1g/ml. find molarity of HCl
Choose the right answer from following. At 300 K, when a solute is added to a solvent its vapour pressure over the mercury reduces from 50 mm to 45 mm. The value of mole fraction of solute will be: (a)0.005 (b)0.010 (c)0.100 (d)0.900
Why oxidising character of oxoacids of halogens decreases as oxidation number increases?
The methods used for the preparation of phenols are given below: From aryl sulphonic acids
What are the various illustrations of the reversible reaction? Explain briefly?
density of water is 1g/mL.The concentration of water in mol/litre is
Give me answer of this question. For a dilute solution, Raoult's law states that: (a) The lowering of vapour pressure is equal to mole fraction of solute (b) The relative lowering of vapour pressure is equal to mole fraction of solute (c) The relative lowering of v
Help me to go through this problem. When 7.1gm Na2SO4 (molecular mass 142) dissolves in 100ml H2O , the molarity of the solution is: (a) 2.0 M (b) 1.0 M (c) 0.5 M (d) 0.05 M
Help me to go through this problem. 10 grams of a solute is dissolved in 90 grams of a solvent. Its mass percent in solution is : (a) 0.01 (b) 11.1 (c)10 (d) 9
What do you mean by the term enzymes? Briefly illustrate it.
Write down a short note on the function of mitochondria?
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