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what is the name of the precipitate and the formulae of the precipitate of NH3 (aq) and Pb(NO3)2 (aq)
A sample of caco3 and mgco3 weighing 192 g is ignite to constant weight of 10 g. calculate sample composition.
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
which is more acidic 3 floro pentonoic acid or 3 nitro pentonoic acid
Delocalisation of electrons in conjugated system is called resonance. For example there is delocalisation of electrons in benzene ,hence we write kekule structure for benzen.
What are enantiomers and diastereomers? Differentiate among chiral and achiral molecules. Give an state of Reimer-Tiemann reaction. How is Bakelite made and what is its majo
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Uncertainty in position of a 0.25 g particle is 10 -5 . Uncertainty of velocity ( h = 6.6 x 10 -34 Js) is: (1) 1.2 x 10 34 (2) 2.1 x 10 -29 (3) 1.6 x 1
how do you convert decimals into scientific notations?
To calculate the e.m.f of the cell when does the nelsons equation is use? Ans) The Nernst equation is useful to measure the e.m.f of the cell when the concentrations of solution
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