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Based on the amount of water you used during the recrystallization ( 36 ml ) estimate the amount of salicylic acid that was lost as a result of being dissolved in the filtrate. assume that the recrystallization solution was cooled to 10 C; the solubility of salicylic acid at that temp is 0.14 gr per 100 ml of water.
Under what circumstances with regards to degrees of no polar characters are frenkel and schottky defects likely?
Give at least 3 reasons why sulfonylamide diuretics such as 'Furosemide' do not possess antibiotic activity?
a student performs two melting-point determinations on a crystalline product. in one determination, the capillary tube contains a sample about 1-2 mm in height and the melting range is found to be 141 degree - 142 degree celsius
Styrene, phenylethene, is treated with H3PO4, an acid whose conjugate base is a poor nucleophile.
What's the name of the product when 2(4-methoxybenzaldehyde) reacts with cyclopentanone in the presence of NaOH and ethanol.
When the following reaction is balanced in acid solution using the lowest possible whole number coefficients, the coefficient of Cl2(aq) will be: Cl-(aq) + MnO4-(aq) ---> Cl2(aq) + Mn2+(aq)
A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate.
silver chloride can dissociate into Ag+ and Cl- species. This inhomogenous equilibrium has K=1.8x10^-10. What is the concentration of Ag+ in solution at equilibrium?
when 9 drops of 0.014 m na2co3aq are added to 25 ml of 0.003 magno3aq. find the qspnbsp if the solubility product of
A bag of potato chips contains 595 ml of air at 25.0 degrees celsius and a pressure of 775 mm Hg.Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 424 mm Hg and the temperature is 10.0 degrees ..
If a vessel containing NO2 has an initial concentration of 2.8 x 10-2 mol/L, how long will it take for 75 of the NO2 to decompose? The decomposition of NO2 is second order in the reactant and the rate constant is 1.1 L/mol x s.
How many molecules of ethanol C2H5OH are present in 135 g of ethanol? The density of ethanol is 0.789 g/cm3?
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