The following results were obtained when a sample of pineapple juice was analyzed to determine its vitamin c content. a 25.0 ml sample of pineapple juice was placed in a flask with 20 ml of 0.5 m h2so4, 1.0 g of potassium iodide, ki, and 25.00 ml of 0.01988 m potassium iodate, kio3. titration with sodium thiosulfate required the use of 26.14 ml of 0.08153 m na2s2o3. calculate the concentration of vitamin c in the sample in mg vitamin c per 100 ml juice. parts a – e below take you step by step through this calculation a. how many moles of i3- are produced from the reaction between ki and kio3? b. how many moles of i3- are consumed from the reaction with thiosulfate? c. how moles of i3- reacted with the ascorbic acid in the pineapple juice? d. how many grams of ascorbic acid were in the juice sample? e. what is the concentration of vitamin c in the juice sample in mg vitamin c per 100 ml juice?
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Chemistry, 22.06.2019 23:30
The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams
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The following results were obtained when a sample of pineapple juice was analyzed to determine its v...
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