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Explain and Define standard feat of formation
Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formation ( Hf *)
Atoms with the different numbers of neutrons and same atomic number are known as isotopes. The chemical properties of an element are determined by wildly the charge on the nucleus,
What is the mass of electrons in grams?
The equilibrium cell potential of the galvanic cell Pt | H 2 (g, f =1 bar) HCl (aq, 0.500mol kg -1 ) | Cl 2 (g, f =1 bar) | Pt is found to be E cell, eq = 1.410V at 298.15
90ml of an unknown concentrated chlorine was diluted with 2250l of water.The dilution now is 0.08mg/l. what is the initial concentration of the chlorine before dilution?
Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
What isbrutherford contribution to thr eludication of atomic structurr
How do i calculate the number of grams of CO that can react with .150kg of Fe2O3?
what is mole
conclusion on colloid
Which of the following set of quantum numbers is correct for the 19th electron of chromium: n l m s (a) 3 0
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