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Two chemical substances A and B react to form a chemical substance C. The reaction rate...

Two chemical substances A and B react to form a chemical substance C. The reaction rate is proportional to the product of the quantities of A and B that have not reacted at an instant t. Initially there are 100 grams of A and 60 grams of B, in addition for each 2g of B 3g of A is required. It is observed that after 5 minutes 25g of C have been formed. How many grams of C will there be in 15 minutes? What is the limit amount of C after a long time? In how much time does half of that limit amount of C form? Plot the graph of the amount of C vs. time.

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