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From the information below, determine the mass of substance C that is formed if 45.0 g of substance A reacts with 23.0g of substance B, assuming that the reaction between A and B goes to completion.

a. Substance A is a gray solid that consists of an alkaline earth element and carbon; the m% C in substance A is 37.5%. It reacts with substance B to form substances C and D. 4.0 x 10^16 (16th power) formula units of substance A weighs 4.26 micrograms.

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