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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
Ethylbenzene Ethylbenzene has a three-proton triplet and, at somewhat greater chemical shift, in the benzylic proton region, a two-proton quartet. p-Xylene has a six-proton si
LIMITATION OF THIRD LAW OF THERMODYNAMICS
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 to 35.8
What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
list the physical properties of two examples of metallic and non metallic elements
Nucleophilic aromatic substitution is possible, but involves substitution of a typical leaving group rather than a hydrogen atom. Remembering that S N 2 and S N 1 mechanisms are no
How many moles of gas occupy 98 L at a pressure of 2.8 atmospheres and a temperature of 292 K?
Azeotropic Distillation - Purification of organic compounds Azeotropic mixture is a mixture comprising constant boiling point. The most well known instance is a mixture of
Use the given data to construct a thermodynamical Born-Haber-cycle of the formation of potassium chloride from its elements and calculate the lattice energy of potassium chloride.
Explain about the Galvanic Cells? An electrochemical cell is a system in which passage of an electric current through an electrical circuit is linked to an internal cell reacti
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