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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 *)
Interfacial Defects Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on each n every
how do we estimate nicotine in tobacco qualitatively in lab by simple chemical test?
CH 3 COOH ( ethanoic acid) + NH 3 ------------ > CH 3 COONH 4 + (HEAT) ---------- > CH 3 CONH 2 (methyleamine) + H 2 O
What are similarities and differences of primitive cells and unit cells? Ans: Unit cell is the basic building block of a crystal, repeated infinitely in three d
Why lead and mercury are in 1st and 2nd group of basic radicals
Schiff's reaction and Tischenko reaction (a) Schiff's reaction: this reaction restores pink colour to Schiff's reagent (aqueous solution of p-rosaniline hydrochloride decolouri
Q. How to balance a redox equation? Ans. Redox equations may be written and balanced by the ionic half-reaction method. Let's use the half-reaction method to balance the f
This brings us to one thing that uniformly drives students crazy. When anything is measured in the lab, you must keep track of how accurately you can measure it. If you measure you
Q. Show the basic Characteristics of Organic Compounds? Ans. Almost all organic compounds contain the elements of hydrogen and carbon. These compounds often contain
when a 0.800g sample of CaCl2 is dissolved in 9.85g of water in a microscale calorimeter the temperature of the solution rose from 23.4 degrees celcius to 35.8 degrees celcius.calc
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