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PART A) PART B) Two chemicals A and B are combined to form a chemical C. The rat

ID: 3111930 • Letter: P

Question

PART A)

PART B)

Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C. Initially, there are 40 grams of A and 50 grams of B, and for each gram of B, 2 grams of A is used. It is observed that 25 grams of C is formed in 9 minutes. How much is formed in 18 minutes? (Round your answer to one decimal place.) grams What is the limiting amount of C after a long time? grams How much of chemicals A and B remains after a long time? grams grams

Explanation / Answer

A :

in 9 minutes 25 gram of c is formed

in 1 minute c is formed = 25/9

in 18 minutes c is formed = 25*18 / 9 = 50 gram.

After long time chemicals remain

A= 0 gram

B = 10 gram [ because for each gram of B , 2gram of A is used]

part B :

40 gram C is formed after 36 minutes.

After long time chemicals remain

A= 0 grams

B = 0 grams.