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# lab 6 - Katie Marrero 2 Noah Orfield R 110 We need Vitamin...

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Katie Marrero 2 Noah Orfield R 110 We need Vitamin C! Results and Calculation Table 1 Experimental values for titration 2, 3, 4, and 5 Titration 2 Titration 3 Titration 4 Titration 5 Volume of orange juice (mL) 10.0 10.0 10.0 10.0 Molarity I 3 - 0.003 0.003 0.003 0.003 Molar Mass of Vitamin C 176.12 176.12 176.12 176.12 (Titration 1 was used to arbitrarily find the mL needed for all titrations) M of Vitamin C (C 6 H 8 O 6 )= 6(12.01g/mol)+8(1.007g/mol) +6(16.00g/mol)=172.12g/mol Table 2 Results from Titrations 2, 3, 4, and 5 Titration 2 Titration 3 Titration 4 Titration 5 Initial Burette Reading (mL) 12.30 21.20 29.50 38.60 Final Burette Reading (mL) 21.20 29.50 38.10 46.90 Total Titrant Used (mL) 8.90 8.30 8.60 8.30 mg of Vitamin C 4.70 4.39 4.55 4.39 Average mg of Vitamin C 4.51 mg Amount of Vitamin C (mg) advertised in bottle (for 10 mL) 2.4 mg Percent Error 87.92% (Titration 1 was used to arbitrarily find the mL needed for all titrations) Sample Calculation for titration 1 Total titrant used=final burette reading – initial burette reading=21.20mL- 12.30 mL= 8.90m L 8.90 mLI 3 - * 0.003 molI 3 - 1000 ml * 1 molVit . C 1 molI 3 - * 176.12 gVit . C

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lab 6 - Katie Marrero 2 Noah Orfield R 110 We need Vitamin...

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