Calculate the molarity of the yellow stock solution. 10.00 L of the stock solution contains 0.1991 g of Yellow #5 food coloring with molar mass = 534.36 g/mol.  B. Calculate the concentration of the yellow stock solution parts per million, ppm. Recall:  ppm = (mg of solute)/(Liters of Solution)  C. Consider the dilutions used to make the solutions and calculate the ppm of each standard solution.   (Use C1V1= C2V2)  D. Explain why ppm is more convenient than molarity for the units of concentration here.

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