2. A concentrated solution of a yellow compound in methylene chloride is added to a chromatographic column. The elution is started using hexane as the solvent. But after 6 liters of hexane have passed through the column, the yellow band has not moved. What can be done to move the band at an acceptable rate?\
Answers: 1
Chemistry, 23.06.2019 05:30
Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?
Answers: 1
Chemistry, 23.06.2019 10:30
Using the periodic table, complete the following. element: hydrogen symbol: hβ molecular weight: g mass of one mole: g/mol
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2. A concentrated solution of a yellow compound in methylene chloride is added to a chromatographic...
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