Question
Sparx Maths 3A= 87 3C 30 3E Summary Booknork codar 32 alvanid A chemical solution contains 7.6ml of water. A chemist adds more water to the solution at a rate of 0.03ml//s . How many seconds will it take for the solution to contain 10ml of water? If your answer is a decimal, give it to 2 d.p. Previous: Watch yidea Antuner
Answer
4.2
(278 Votes)
Wyatt
Expert · Tutor for 3 years
Answer
80.00
Explanation
In order to figure out how many seconds it will take for the solution to contain 10 ml of water, subtract the initial amount of water from the desired amount and then divide the result by the rate at which water is being added. In this case: (10 ml - 7.6 ml) ÷ 0.03 ml/s = 2.4 ml ÷ 0.03 ml/s = 80 seconds. So, it will take 80 seconds to add 2.4 ml of water to the solution at a rate of 0.03ml per second.