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let we have to calculate wait of 20mM tris-HCL for a solution of 1liter,then formula for molarity is
Molarity= weight (in grams)/molecular weight X volume in liter
hence 20/1000=wait/121.14X1
wait = 20 X 121.14/1000 (cross multiplication)
wait = 2.42gm
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∙ 12y ago
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