A multi vitamin supplement contains 200 mg of vitamin C. How many mL of 0.01 M KIO3 solution is required to reach the stioichiometric point?
Please provide a detailed explanation.
A multi vitamin supplement contains 200 mg of vitamin C. How many mL of 0.01 M...
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.
A student needs to prepare 100.0 mL of vitamin C solution according to the directions in Part 1 of the experiment. S/he weighs out 0.0471 g vitamin C (molar mass = 176.124 g/mol) and dissolves it in water to give 100.0 ml solution. S/he pipets 10.00 mL of the solution into a beaker and adds 20 mL of water and 10 mL of buffer. (a) How many mg of vitamin C are in the beaker? 4.9 4.71 mg (b) Suppose...
4. If the vitamin C tablet says that it contains 1000 mg of vitamin C, how much iodine solution would be needed? What is the percent DV for that tablet?
LABORATORY 10 DETERMINATION OF VITAMIN C CONCENTRATION 3. How many grams of (pure) vitamin C is contained in your unknown stock solution (Part A)? Hint: The solution is made in a 1-L bottle. 4. Consider the following titration: If 21.35 mL of 0.005 M iodine solution is needed to titrate a solution of commercial vitamin C tablet (500 mg) pre- pared in a 100-mL volumetric flask, then what is the mass (%) of vitamin C in the commercial tablet? 5....
How many mL of M ? How many mL of a 0.184 M NaNO_3 solution contains 0.113 mol NaNO_3 ? 543 mL 163 mL 614 mL 885 mL 326 mL
1a) How many mg is 5.95×10–5 mol of ascorbic acid (i.e. Vitamin C)? Report your answer to 1 decimal place. b)What is the concentration of a potassium iodate solution after you complete the following porcedure? Pipette 24 mL of a 0.16 M potassium iodate stock solution to a 100-mL volumetric flask and then add water to the mark. Report your answer in decimal form to 3 decimal places.
4. Consider a 200 mL solution of 0.40 M CH COOH (aq) at 25'C a. What is the pH if you titrate in 100 mL of 0.20 M NaOH? b. How many mL of 0.20 M NaOH will it take to reach the equivalence point c. What is the pH at aforementioned equivalence point?
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...
A prefilled syringe contains 55 mg of drug in 2 mL of solution. How many mcg (round to a whole number) of drug would be administered by the injection of 1.4 mL of the solution?
can someone please help me with #2, 3 & 4. Could you also please show me step by step how you obtained the answer. Thank you! 2: If you squeeze 24.75 g of lemon juice from a lemon and it requires 15.45 mL of 0.00115 M KIO3 to reach the endpoint. What is the concentration of Vit C in mg per gram of juice (mg/g)? Mol KIO3/g juice = Mol Vit C/g juice = mg Vit C/g juice = 3...