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All percentages are in mass% and all quantities are in grams (mass), be sure do not to take volumes into account because mass is 'additive', volumes are not quantitatively additable!
Answer: Take whatever mass of 60 percent solution you have, multiply that mass by 20 (=60-40) and then divide that amount by 40, this is how much water to add to get an 40% solution.
Example: Suppose you have 100 gram of 60% solution, then you should add:
100 * (60-40)/40 = 100*0.50 = 50 gram of water; this is to be added to 100 gram of 60% solution to get (50 + 100 =) 150 gram of 40% solution.
(see on top of the page to know why this calculation method is not valid for 'volumes')
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A chemist has one solution that is 60 percent chlorinated and another solution that is 40 percent chlorinated How much of the first 60 percent solution is needed to make a 100 L solution that is 5?
50liters
A chemist has one solution that is 60 percent chlorinated and another solution that is 40 percent chlorinated. How much of the first 60 percent is needed to make a 100 L solution that's 50 percent?
50
A chemist has one solution that is 60 percent chlorinated and another that is 40 percent chlorinated How much of each solution is needed to make a 100 liter solution that is 50 percent chlorinated?
50 Liters of the 60% solution.
How do you convert a 100 percent score to a 60 percent score?
Don't study.
What percent 40 percent of 60?
40 percent of 60 is 2,400%
A chemist has one solution that is 60 percent chlorinated and another solution that is 40 percent chlorinated How much of the first 60 percent solution is needed to make a 100 L solution that is 5?
50liters
A chemist has one solution that is 60 percent chlorinated and another solution that is 40 percent chlorinated. How much of the first 60 percent is needed to make a 100 L solution that's 50 percent?
50
A chemist has one solution that is 60 percent chlorinated and another solution that is 40 percent chlorinated How much of the first 60 percent solution is needed to make a 100 L solution that is 50?
To create a 50% chlorinated solution from the 60% and 40% solutions, the chemist will need to mix the two in equal amounts. Therefore, 50 L of the 60% solution and 50 L of the 40% solution are needed to make a 100 L solution that is 50% chlorinated.
A chemist has one solution that is 60 percent chlorinated and another that is 40 percent chlorinated How much of each solution is needed to make a 100 liter solution that is 50 percent chlorinated?
50 Liters of the 60% solution.
How do you convert a 100 percent score to a 60 percent score?
Don't study.
How do you convert 24 out of 40 to a percent and decmail?
Expressed as a percentage, 24/40 x 100 = 60 percent. Expressed as a decimal, 24/40 = 0.6.
What percent 40 percent of 60?
40 percent of 60 is 2,400%
What is 40 percent of 400?
To find 40 percent of 400, you first convert 40 percent to a decimal by dividing by 100, which gives you 0.40. Then, you multiply 0.40 by 400 to find the answer. Therefore, 40 percent of 400 is 160.
What percent of 60 minutes is 40 minutes?
First we convert 40% to a decimal. we get 40/100 or 0.40 then we multiply it by 60 0.4*60 = 24 so 40% of 60 minuts is 24 minuts
How do you find 60 percent of 40?
60 percent of 40 = 2460% of 40= 60% * 40= 0.60 * 40= 24
What is the answer to 40 percent of 60 percent?
40% of 60% = 40/100 * 60/100 = 0.24 or 24%
How many liters of a 50 percent alcohol solution must be mixed with 40 liters of a 90 percent solution to get a 60 percent solution?
mary mixed 2l of an 80% acid solution with 6l of a 20% acid solution. what was the percent of acid in the resulting mixture
