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Physical Chemistry
"H+ ion has exceptionally high conductivity in aqueous medium." - Explain by suggesting a suitable mechanism for ion-conductance.
Physical Chemistry
I have to take acrylamide and acrylic acid in 50 ml of distilled water and mass ratio of acrylic acid and acrylamide is 6:1. could you please explain me what does it mean. and how much i have to take. (mol. wt of acrylic acid is 72.06 and mol wt aof acrylamide is 71.08 ).
Physical Chemistry
A mixture of 0.10 mol of NO, 0.050 mol of H2 and 0.10 mol H20 is placed in 1.0 L vessel at 300K. At equilibriuk, [NO]=0.062 M. a) Calculate the equilibrium concentrations of H2, N2 and H2O. b)Calculate Kc
Physical Chemistry
There are four substances W, X and Z. The substance W is a dark violet solid having di-atomic value. A solution of W in alcohol is used as a common anticeptic. The substance X is a white solid which is usually recovered from sea water on a large scale. The substance Z is a yet another white solid which is used in making commonly used dry cells. Please tell the 3 substance name.
Physical Chemistry
When 0.1 M sodium hydroxide is titrated against 0.1M phosphoric acid H3PO4 . Two distinct end points may be detected using methyl orange and phenolphthalein. Explain why this is so ? and sketch the type of PH curve found for the neutralisation of this with acid.
Physical Chemistry
For a 10 degree Celsius rise in the temperature, the rate constant doubles for a reaction no. 1, and triples for a reaction no. 2. If the two reaction have comparable pre-exponential factors what is the ratio of their activation energy?
Physical Chemistry
How many cm3 would a 515.932 g sample of copper occupy if it has a density of 18.92 g/cm3?
Physical Chemistry
Pure gold has a density of 119.32 g/cm3. How large would a piece of gold be if it had a mass of 3118.97 g?
Physical Chemistry
What is the mass of a 1350 cm3 sample of pure silicon with a density of 21.336 g/cm3?
Physical Chemistry
How many grams of tin would occupy 15.5 L, if it has a density of 17.265 g/cm3?(hint 1L=1000cm3)
