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A new drug with the secret formula Drug(SO4) (322.0 g/mol) is developed with a Ksp of 3.2 x 10-8 (the drug is naturally in the +2 charge state and is packaged as the slightly soluble sulfate salt). The pharmacist recommends that the drug be completely dissolved in water for best effects.
a) If each tablet contains 6.50 mg of the drug, what is the minimum volume of liquid ( in mL) that must be used to dissolve the drug from one tablet? (Round your answer to three sig. figs)
If you measure the pH and find it to be 11.24, how many grams of triethylmine were used to make the solution?
Calculate the equilibrium concentrations of H3O, acetate ion, and acetic acid in a .20-M aqueous solution of acetic acid, CH3COOH.
in the final step of the purification process in the miniscale procedure for preparing 1-bromobutane from sodium
what is the concentration of dissolved o2 in blood or water at this partial pressure and a normal body temperature of
A chromium-containing compound has the formula Fe(x)Cr(y)O4 and is 28.59% oxygen by mass. Find x and y.
1.464 g of an unknown hydrocarbon (112.6 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.234 kJ/ºC and ?T =5.744 ºC. Find ?E for this hydrocarbon in kJ/mol.
What mass of Na2CrO4 is required to precipitate all the silver ions from 96.0 mL of a 0.650 M solution of AgNO3
If you have a vapor compression cycle using HCF-134a refrigerant instead, what is the minimum pressure would you have to achieve in the compressor in order to reject heat into the surroundings assuming that you need the refrigerant to be a minimum
What is the Vmax of this enzyme when enzyme concentration equal to 0.3 mg ml-1? b) When the above reaction was carried out in the presence of 2.5 ?M inhibitor, the Vmax is 0.03 M sec-1. What kind of inhibitor is this. Justify your answer with prop..
10.1 g cao is dropped into a styrofoam coffee cup containing 157 g h2o at 18.0degc. if the following reaction occurs
Dimethyl ether and ethanol are structural isomers of C2H6O. Which one will have a higher boiling point? Explain why and do the same for their melting points.
If the pressure exerted by a gas at 25°C in a volume of 0.032 L is 2.79 atm, how many moles of gas are present?
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