A tablet containing some Vit C (ascorbic acid) was dissolved in water then titrated with 24.88...
A vitamin C (ascorbic acid) tablet was dissolved in approximately 50 mL of distilled water and titrated with the standardized NAOH solution. From the results of this titration, the mg of ascorbic acid in the tablet was calculated. Molecular formula of ascorbic acid: C6H806 Volume of NaOH required to neutralize ascorbic acid in Vitamin C tablet (mL) 14.47 Concentration of NaOH in mol/L, 0.1964 Calculate the amount of ascorbic acid in the Vitamin C tablet in (mg). Answer:
Calculate the weight percent of ascorbic acid in a tablet of Vitamin C from the following data: A 100 mg sample of a crushed Vitamin C tablet was dissolved in 40 mL of H2SO4 and 20 mL of water. Two grams of KI and 35 mL of 0.0107 M KIO3 solution was added, and the mixture titrated to a starch endpoint. The titration required 12 mL of 0.0790 M thiosulfate solution.
Sodium hydroxide reacts with ascorbic acid to produce sodium ascorbate and water. Below is the chemical equation: 2NaOH(aq) + H2C6H60(aq) → Na2C6H606(aq) + 2H20(1) Part A - Standardization of the NaOH Solution Trial 1 Trial 2 Trial 3 --------------- 0.4 g Mass of Ascorbic Acid (g) Moles Ascorbic Acid Moles NaOH based on stoichiometry ----------- NaOH Initial Volume (V;) 0.00 mL -------- -----------m L NaOH final Volume (V) 22.5 mL --------mL ----mL ---ml -----mL ------------mL NaOH Volume Used Vi-V; NaOH...
Ascorbic acid (vitamin C, MM 176.124 g/mol)) can be determined using an iodometric back titration. A vitamin C tablet was dissolved in 60 mL of 0.3 M H2S04. To the dissolved tablet, 2 g of KI and 50.00 mL of 0.0105 M KIO3 were added, resulting in the formation of a dark orange solution indicating the presence of 13-. The resulting solution was titrated with 0.0685 M S2032- until the starch indicator turned purple. If the end point was observed...
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