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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)
The specific heat of copper is 0.385 J/(g x ?C). If 34.2 g of copper, initially at 25 ?C, absorbs 4.689 kJ
a chloroform solution of caffeine c8h10n4o2 contains concentration of 0.0868 m . compute mole fraction of
A student titrated 20.0 mL of 0.410M HCL with 0.320M NaOH. Find the pH, [H3O+], and [OH-] when 21.50mL of titrant has been added.
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification
a sample of sodium reacts complete with 0.497kg of chlorine, forming 819g sodium chloride. what mass of sodium reacted?
A 10.0 ml sample of hcl is titrated with 0.5062 m naoh. 16.58 is required to reach the equivalence point. what is the molarity of the hydrochloric acid solution
Write net Bronsted equations and determine the equilibrium constants for the acid-base reactions that occur when aqueous solutions of the following are mixed.
Calculate the equilibrium partial pressures of Cl2, H2O, HCl, and O2. Peq(Cl2) = . Peq(H2O) = . Peq(HCl) = . Peq(O2) = . (b) Calculate KP for this reaction.
At 25C, what is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H+]=2.7 x 10 ^ -6 M
The reaction H2O2 --> H2O + O2 could be catalyzed by either MnO2 or beef liver, which contains the enzyme catalase. In either case, the catalyst
what are the boiling point and freezing point of a 4.33 m solution of naphthalene in benzene? the boiling point and
Draw the structures of the adduct of (i) 2 molecules of resorcinol with 1 molecule of furfural and (ii) of 3 molecules of resorcinol with 1 molecule of 5-hydroxymethylfurfural.
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