Molar mass of red dye 40
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the molar concentration of the Blue No. 1 dye found in it. From this calculation and the molar mass of your dye, you will determine the mass of Blue No. 1 dye found in 591 mL of the solution – equivalent to a 20 fluid ounce bottle. Experimental Procedure Making a measurement with the Thermo Scientific™
Allura Red, red dye #40, has a molar mass of 496.42 g/mol. It usually comes as a sodium salt, but it is soluble in water. In aqueous solutions, its λ max is around 504 nm.