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Q. What is paired comparison test?
In paired comparison test, the assessor is presented with two products and asked to indicate whether there is a preference between them.
Definitions A Br ø nsted base a proton acceptor, and Br ø nsted acid is a proton donor. In this definition an acid-base reaction accepts protolysis:
Find te emprical formula for the oxide that contains 42.05 g of nitrogen and 95.95 g of oxygen
find H^+ concentration if Ph=4.90
physical and chemical properties of matter
what/s this test
excess copper(2)hydroxide solid was placed in a NaOH solution and left until the equilibrium was reached, ph was 10 at 25C Ksp for Cu(OH)2
Q. Illustrate the Physical properties of Ammonia? Ans. Ammonia is a colorless gas that has a strong penetrating odor. It boils at -33 o C and is easily liquefied by press
Given that ?H°298 for the reaction is -92.2 kJ mol-1, which is larger, the total bond dissociation energy of the reactants or the total bond dissociation energy of the products?
GROUP 2: ALKALINE EARTHS The elements known commonly as alkaline earths have atoms with the (ns) 2 design and almost always have the +2 oxidation state in their compound
what is cyrogenic technology ?? explain with defination please
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