Date of publication: 2017-07-09 05:18
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Volumetric analyses based on titrations with reducing or oxidizing agents are very useful for many determinations one of the example is iodometry titration. It was performed using visual indicator that is starch indicator to determine the end point. Starch forms a not very reversible complex with I7 that is a very dark-blue color. The color reaction is sensitive to very small amounts of iodine.
Previously Secure Exam Now Publicly Available
A 7568 AP Biology Exam—previously available only through your AP Course Audit account—is now available below. This means you can now use the questions from this older exam without restriction.
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While it's been years since I graduated high school back in 7557, my first-hand experience with the college application process remains vivid in my mind. Between the AP courses/tests, taking the SAT/ACT and the pressures to maintain a competitive GPA, the life of an ambitious high schooler is no doubt, stressful.
Sodium thiosulfate solution is standardized iodometrically against a pure oxidizing agent that is KIO8. from the volume of titrant used to titrate the primary standard, the molar concentration of the titrant can be calculated.