15) For my doctoral studies, I synthesized stable metallacyclobutenes and studie

Question

15) For my doctoral studies, I synthesized stable metallacyclobutenes and studied their reactivity with a variety of molecules, particularly alkenes. The main metallacyclobutene l studied has a formula mass of 710.79 g/mol. If I wanted to study the reactivity of this metallacyclobutene with maleic anhydride - which weighs 98.06 g/mol- and I am using 979 mg of metallacyclobutene, how many mg of maleic anhydride do I need? Assume that you need one molecule of maleic anhydride for each molecule of metallacyclobutene, and that the reaction goes to completion (all starting materials are transformed to product) a) 675 mg b) 323 mg c) 98.1 mg d) 135 mg

Explanation / Answer

Since, 710.79 g of metallacyclobutane needs.....................98.06 g of maleic anhydride

So,  1 mg of metallacyclobutane needs.....................98.06/710.79 mg of maleic anhydride

So, 979 mg of metallacyclobutane needs.....................(98.06/710.79) x 979 mg of maleic anhydride = 135 mg

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