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Length of a Fatty Acid Molecule The carbon-carbon bond distance for single-bonded carbons such as those in a saturated fatty acyl chain is about . Estimate the length of a single molecule of palmitate in its fully extended form. If two molecules of palmitate were placed end to end, how would their total length compare with the thickness of the lipid bilayer in a biological membrane?
The quantity of dissolved oxygen (DO) in natural waters is an essential parameter for monitoring survival of most aquatic life. DO is affected by temperature and the amount of organic waste. An earlier method for determining DO involved a two-step process: 1. The water sample is treated with Kl, , 2. The is titrated with sodium thiosulfate, A 50.0-mL water sample is treated with Kl, and then 15.75 mL of 0.0105 M is required to reach the end point.
Which substance is oxidized in step 1, and which is reduced in step 2?