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21 Jul 2018
1. a .1276 g sample of a monprotic acid, molar mass 1.10 x 10^2,was dissolved in 25 mL of water and titrated with .0633 M NaOH.After 10 mL if base had been added the pH was determined to be5.27. What is the Ka for the acid?
2. calculate the ph at the equivilance point for the followingtitration: .20 M HCl versus .20 M methylamine. Ka of methylammoniumis 2.3 x 10^-11
3. 30 mL if .10 M Ba(NO3)2 is added to 10 mL of .10 M Na2CO3 andresulting concentration in solution of Ba is .075 M CO3 is .025 M.What is the value of the reaction quotient?
1. a .1276 g sample of a monprotic acid, molar mass 1.10 x 10^2,was dissolved in 25 mL of water and titrated with .0633 M NaOH.After 10 mL if base had been added the pH was determined to be5.27. What is the Ka for the acid?
2. calculate the ph at the equivilance point for the followingtitration: .20 M HCl versus .20 M methylamine. Ka of methylammoniumis 2.3 x 10^-11
3. 30 mL if .10 M Ba(NO3)2 is added to 10 mL of .10 M Na2CO3 andresulting concentration in solution of Ba is .075 M CO3 is .025 M.What is the value of the reaction quotient?
Tod ThielLv2
22 Jul 2018
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