1. A sample of tris(hyroxymethyl)aminomethane (H 2 NC(CH 2 OH) 3 ), which is a b
ID: 1079188 • Letter: 1
Question
1. A sample of tris(hyroxymethyl)aminomethane (H2NC(CH2OH)3), which is a base, with a mass of 0.4886 g is dissolved in water and used to standardize a solution of hydroiodic acid. An endpoint is reached when 27.59 mL of hydroiodic acid has been added. Determine the molarity (in mol/L) of the hydroiodic acid solution. Report your answer to four significant figures.
2. The standardized hydroiodic acid solution is then used to titrate 28.36 mL of a solution of sodium lactate (NaC2H5OCOO). An endpoint is reached when 21.33 mL of hydroiodic acid has been added. Determine the molarity (in mol/L) of the sodium lactate solution. Report your answer to four significant figures.
Explanation / Answer
1. A sample of tris(hyroxymethyl)aminomethane (H 2 NC(CH 2 OH) 3 ), which is a b
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