a product. Name: Date: Experiment X-Worksheet Microscale Synthesis of Melamine-c

Question

a product. Name: Date: Experiment X-Worksheet Microscale Synthesis of Melamine-cyanuric Acid Complex (Melamine cyanurate) cyanuric acid Question 1: Convert both 100 mg of melamine and 100 mg acid to millimoles (mmols) given the molecular weights above. Question 2: List (a) the starting mass of melamine (mg). (b) cyanuric acid and (c) the (a) (b) (c) Question 3: Provide your percent yield calculation below. Note: You do not need to determine the limiting reagent the theoretical yield b Question Question 4: Briefly describe why you would not want to use the same stir rod before combining the two aqueous solutions of melami and cyanuric acid. ne

Explanation / Answer

Question (1) Answer We know that mol = weight/molecular weight

so mmol = mg/molecular weight s

so mmol of melamine = 100/126.12 = 0.792 mmol

and mmol of Cyanuric acid = 100/129.07 = 0.774 mmol

Question (2) Answer

If we consider basis of melamine =0.792 mmol then

starting weight of melamine = 0.792 mmol =0.792*126.12 = 100 mg

           weight of Cyanuric acid = 0.792 mmol =0.792*129.07= 102.22 mg

          weight of melamine -Cyanuric acid (Product) = 0.792 mmol =0.792*255.19 = 202.11mg

          

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