A cotton fabric is dyed at 5 % shade (owf) using a monofunctional reactive dye. The molecular weight of the dye and cellobiose unit is 400 and 342, ?

21 December 2022 1 2K Report

plz

Actually, you haven't posed a question. But think along these lines: Cellulose is a polycondensate of glucose, with 3 alcoholic OH-groups free. Cellobiose is a hydrolytic fragment of cellulose with two glucose molecules.

If 5% of the available OH-groups react, how many moles of dye do you need for a mol of cellobiose? How much is that in weight?

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