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A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note; your answer should be in the form of one or more fractions multiplied together. A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. A chemist determined by measurements that 0.020 moles of iron participated in a chemical reaction, Calculate the mass of iron that participated in the chemical reaction. Round your answer to 2 signifficant digits