Problem based on molarity
Choose the right answer from following. The molarity of a solution of Na2CO3 having 10.6g/500ml of solution is : (a) 0.2M (b)2M (c)20M (d) 0.02M
Give me answer of this question. When a non-volatile solute is dissolved in a solvent, the relative lowering of vapour pressure is equal to: (a) Mole fraction of solute (b) Mole fraction of solvent (c) Concentration of the solute in grams per litre
Give me answer of this question. An aqueous solution of methanol in water has vapour pressure: (a) Equal to that of water (b) Equal to that of methanol (c) More than that of water (d) Less than that of water
Illustrate how are dipole attractions London dispersion forces and hydrogen bonding similar?
How many electrons are present in a benzene?
parachloroaniline is strong base than paranitroaniline
Briefly describe the difference in the Mendeleev’s table and modern periodic table?
Silicon has three naturally occurring isotopes. 28Si, mass = 27.976927; 29Si, mass = 28.976495; 30Si, mass = 29.973770 and 3.10% abundance. What is the abundance of 28Si?
what is the molarity of the solution prepared by dissolving 75.5 g of pure KOH in 540 ml of solution
6. 20 gm of hydrogen is present in 5 litre vessel. The molar concentration of hydrogen is
Illustrate all the explosions produce carbon dioxide?
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