some basic concepts of chemistry
an atom of an element is 10.1 times heavier than the mass of a carbon atom.What is its mass in amu?
Which one is polar HCl or HF?
Unit of measurement- These are also some systems for units: (1) C.G.S.
what is the molar conductance of chloropentaamminecobalt(III) chloride?
If 20ml of 0.4N, NaoH solution completely neutralises 40ml of a dibasic acid. The molarity of the acid solution is: (a) 0.1M (b) 0.2M (c) 0.3M (d) 0.4M Choose the right answer fron above.
are halides are halogens more soluble? why?
Superphosphate has the formulate: CaH4 (PO4)2 H2O calculate the percentage of Phosphorus in this chemical. Show your calculations
Briefly define the term oxidizing agent?
Give me answer of this question. What is the volume of 0.1NHcl required to react completely with 1.0g of pure calcium carbonate : (Ca= 40, C= 12 and o = 16 ) (a)150cm3 (b)250cm3 (c)200cm3 (d)100cm3 Q : Amines why o-toluidine is a weaker base why o-toluidine is a weaker base than aniline?
why o-toluidine is a weaker base than aniline?
Show the organic structure of cetearyl alcohol and state what the organic family is? Briefly state it.
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