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A brand X antacid tablet was analyzed by a student in an experiment.The student dissolved the tablet in 25.00ml of a standardized HCl solution containing 1.627*10^-2 mol of HCl.The back-titration of the excess HCl required 7.38 mL of 1.035M NaOH solution.
(a). Calculate the molar concentration of the HCl solution that the student used
(b). Calculate the number of moles of HCl neutralized by the antacid tablet.
An excess of aqueous AgNO3 reacts with 41 mL of 5 M K2CrO4(aq) to form a precipitate. What mass of the percipitate is formed
Calculate the equilibrium concentration ratio of phosphocreatine to creatine in the following reaction if the concentrations of ATP and ADP are 8.0 mM and 1.6 mM, respectively.
What effect would each of the following have on the calculated molecular weight of an unknown. Would the calculated value be higher than the true value. Lower. Same
given that Go = 5.02 kcal/mol for the complete reaction catalyzed by isocitrate dehydrogenase and that Go = 4.71 kcal/mol for the nonoxidative decarboxylation of oxalosuccinate, oxalosuccinate + H+ ----> CO2 + a-ketoglutartate.
Using curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone to 9-fluorenol with sodium borohydride followed by aqueous acid
approximately what percentage of the acetic acid molecules are protonated and neutral in charge at pH 5.7?
potassium bromide kbr is soluble to the extent of 64g per 100g of h2o at 20c. is the solution saturated or unsaturated?
All of the following are characteristics of fusion EXCEPT A) Two small nuclei combine to form a larger nucleus. B) Large amounts of toxic nuclear waste are produced during a fusion reaction.
In an "anti-bonding" orbital between two atoms, the electrons involved in the bond spend "most of their time" a) in between the two atoms where they act to repel one another
What pH is needed such that the maximum [Mg^(2+)] in solution is 2x10^-4 M given the equilibrium: Mg(OH)2(s) Mg^(2+) + 2OH^(-)
A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
Calculate the mass percent of a solution that is prepared by adding 35.9 gram of NaOH to 30.2 g of H2O.
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