Question

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 100 grams of A and 50 grams of B, and for each gram of B, 2 grams of A is used. It is observed that 15 grams of C is formed in 7 minutes. How much is formed in 28 minutes

Answer 1

Answer: 60 grams.

Step-by-step explanation:

Given data:

Chemical A = 100 grams

Chemical B = 50 grams

For each gram of B 2 grams of A is used = 1:2.

15 grams of C is formed in 7minutes.

Solution

How many grams would be formed in 28mins?

= 15grams / 7 minutes

= 2.1423 grams/minute

If 2.1423 grams is formed/minutes

= 28minutes x 2.1423grams

= 60grams

60 grams of solution C would be formed in 28 minutes.