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In the titration of 50.0 mL of 0.0200 M C6H5COOH(aq) with 0.100 M KOH(aq), what is/are the major species in the solution after the additon of 5.0 mL of NaOH(aq)?
During a strenuous workout, an athlete generates 1950.0kJ of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
If the pressure exerted by ozone, in the stratosphere is 3.0*10^-3 atm and the temperature is 253 K, how many ozone molecules are in a liter?
If 30.0mL of .150M calcium chloride is added to 15.0 mL of .100 M silver nitrate what will be the final concentration of all ions the remain in the solution?
Titration of 25.00 mL of HCl requires 15.62 mL of 0.250 M Ba(OH)2. Determine the concentration of the HCl solution
What is the density of lead if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9g.
Descrbe the pH of a buffer soluton consisting of 100mL containing 0.1M CH3COOH and 0.125 CH3COO-, both before and after the additon
A 0.338-g same of anhydrous sodium carbone, Na2CO3, is dissolved in water and titrated to a methyl orange endpoint with 15.33 mL of a prepared hydrochloric acid solution. What is the molar concentration of the HCl solution
Draw the following peptides, AND indicating the amide bonds that are formed through the side chains. What are the pKa values of the various groups on the peptide?
Draw the structural formulas for any three compunds with the molecular formula C4H10O. If its an alcohol, classify each alcohol as primary, secondary, or tertiary?
What is the formal charge of the N atom in the correct or best Lewis structure for CN-?
Titration of 664 mg of a pure organic carboxylic acid, H2A, showed a rapid change in pH at 40.00 mL and at 80.00 mL of 0.100 M NaOH titrant. When 40.00 mL of NaOH was added, the pH was 5.85, and at 60.00 mL of NaOH the pH was 8.08. What is the mol..
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
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