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name any insolvent compound?
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During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.
If the H were a classic particle what would be the tunneling probability?
Why water is not detected in GC & solvents are not detected in HPLC?
name any insolvent compound?
what are the advantage and disadvantages of evaporation?
How can be set a responds factor for evaluating a unknown impurity by HPLC
What can be the supporter of combustion except oxygen.
Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?
Why does the experimental lattice enthalpy of NaI differ greatly from the theoretical lattice enthalpy?
a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?
what is little silver
Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well
Organic Chemistry 
