Chemistry, 28.02.2020 23:58, tdyson3p6xvtu
You need to analyze the fuel oil in a river that runs along a highway. You start by collecting the sample. Fuel oils are best analyzed by gas chromatography. Aqueous sohutions don't work well in a GC. Therefore you need to extract the fuel oil into an organic phase. Fortunately, being an organic molecule fuel oil is more attracted to an organic solvent than to an aqueous one. The distribution coefficient is 8.3. Your lab has been extracting 100 ml aqueous samples with three 10 ml aliquots of petroleum ether. You think that takes too much time so you shortcut the procedure by performing only one extraction with the whole 30 ml of petroleum ether. What is the percent error introduced by your haste?
Answers: 1
Chemistry, 23.06.2019 01:30, rubyr9975
What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands
Answers: 1
Chemistry, 23.06.2019 01:30, kcarstensen59070
Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.
Answers: 1
Chemistry, 23.06.2019 06:30, tdahna0403
The molar mass of cu is 63.55 g/mol. the number of grams of cu produced in this reaction is
Answers: 3
You need to analyze the fuel oil in a river that runs along a highway. You start by collecting the s...
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