subject
Chemistry, 21.10.2019 16:20 adam463

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?

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 13:00
One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
Answers: 1
question
Chemistry, 22.06.2019 13:30
An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum
Answers: 1
question
Chemistry, 22.06.2019 14:00
What is the molar mass of ca(cio4)2
Answers: 1
question
Chemistry, 23.06.2019 00:30
The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2
Answers: 2
You know the right answer?
The following results were obtained when a sample of pineapple juice was analyzed to determine its v...
Questions
question
Business, 25.10.2020 19:00
question
Mathematics, 25.10.2020 19:00
question
Mathematics, 25.10.2020 19:00
Questions on the website: 13722363