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After cleaning as well as drying a permeability plug 3.00 cm in diameter and 6.00 cm in length weighs (in air) 95 grams. The plug is after that saturated with water at which point its weight becomes 101.5 gr. Presume density of water = 1 gm/cm3. Estimate the porosity of the core. Is this the total porosity? Why?
volume of a piece of galena is 4.7 cm3. determine the mass of that piece of galena if the density of galena is 7.5 gcm3
how does an acidic buffer solution reacts when we add strong acid or base to it? and what are the diffrences in the
Below is the 1H NMR spectrum of the following triazine structure. In the expansions of the spectrum, place the observed multiplicity in the bin above the resonance.
the value of kf for cyclohexane is 20.0degcm and its normal freezing point is 6.6degc. a mass of 1.604 g of a waxy
Which of the following could be the results of the decomposition of the other sample, being consistent with the law of constant composition (also called the law of definite proportions or law of definite composition)?
Determine the mL KOH needed at the equivalence point and the ph upon the addition of this volume of KOH.
A linear combination of orthonormal kets,
question what is the molecular weight of a volatile liquid if .50 g of the liquid fills a 100 ml flask as a gas at 25
If 3.0 Ml of distilled water is added to 2.0 ml of 0.35M CoCl2 solution, what is the concentration of the resulting solution.
One hundred fifty kmol of an aqueous phosphoric acid solution contains 5.00 mole % H3PO4. The solution is concentrated by adding pure phosphoric acid at a rate of 20.0 L/min
Pyrazole has been proposed as a possible nontoxic inhibitor of LADH-catalyzed ethanol oxidation. Suggest a mechanism for the action of this inhibitor.
Calculate the change in pH when 46.00 mL of a 0.600 M solution of NaOH is added to 1.00 L of a solution that is 1.00 M in sodium acetate
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