homework
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?
arrange in decreasing order of basicity pi pyridine,pyridine,pyrrole, morphine
living beings are made up of organic and inorganic substances.according to their complexity of their molecules how can ach of these substances be classified?
Provide solution of this question. The weight of sodium carbonate required to prepare 500 ml of a seminormal solution is: (a) 13.25 g (b) 26.5 g (c) 53 g (d) 6.125 g
Determination of correct mol. Mass from Roult's law is applicable to :
Give me answer of this question. The vapour pressure of benzene at a certain temperature is 640mm of Hg. A non-volatile and non-electrolyte solid weighing 2.175g is added to 39.08g of benzene. The vapour pressure of the solution is 600,mm of Hg . What is the mo
density of water is 1g/mL.The concentration of water in mol/litre is
Provide solution of this question. Unit of mole fraction is: (a) Moles/litre (b) Moles/litre2 (c) Moles-litre (d) Dimensionless
C-X bond length in halobenzene less then C-X bond lengthin CH3-x
why allyl halide and haloarenes are more reactive than alkyl halide towards nucleophilic substitution
Choose the right answer from following. The magnitude of colligative properties in all colloidal dispersions is : (a) Lowerthan solution (b)Higher than solution(c) Both (d) None
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