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Table lists data for water, crystalline sodium thiosulfate pentahydrate, and several sodium thiosulfate solutions. Find ΔH to the nearest 0.01 kJ for the dissolution of 5.00 g of crystalline Na2S2O3.5H2O in 50.0 g of water at 298.15K and 1 bar.
Hofmann Method - Determination of Molecular Mass The method is applied to those substances that are not stable at their boiling points, but that may be volatilised with no deco
Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6 (sugar)
How can we calculate the rate of effusion of nitrogen gas from a cylinder and How much time it will take?? Ans) rate of effusion=r=(volume of nitrogen gas effusing from the cyl
Give example of Allotropy The element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, and graphite
Figure states energy differences for the combustion of hydrogen, an exothermic chemical reaction. The combination of oxygen gas and nitrogen gas to form nitrogen monoxide is an exa
what is an alkane
Physical properties of Phthalic Acid (a) Phthalic acid is colourless crystalline substance. (b) Phthalic acid's melting point is not sharp (195-213°C). (c) Phthalic acid
Structure of chlorine triflouride by VSEPR theory
Q. Determine the frequency of light wave? Ans. The wavelength of red light is 7.0 x 10 -7 m. What is the frequency? c = λv The first thing to remember here is that
fatty acid distribution in trihydric alcohol for triacylglycerol formation
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