Chemistry, 05.05.2020 22:40 tristanortonubca
5. The extinction coefficient determined above was for the mixture of Kool-Aid, which contains red dye 40, preservatives and flavoring agents. The actual extinction coefficient for Red 40, which causes most of the absorption, is 2.7 x 104 Lmol-1cm-1 around 500nm. Determine the concentration of red dye in the stock solution. This calculation requires you to determine the concentration of test tube 1 (the working solution) and then use the dilution factor to convert this concentration to that of the stock solution.
Answers: 1
Chemistry, 22.06.2019 22:40
Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
Answers: 1
Chemistry, 23.06.2019 14:00
One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 14.0 mol cesium fluoride with 14.0 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)
Answers: 1
5. The extinction coefficient determined above was for the mixture of Kool-Aid, which contains red d...
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