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A 280 mL solution is 20 percent salt How much water should be added to make the solution 14 percent salt?
98 mL
How much sodium bicarb should be added to make 8.4 percent solution 500 ml?
42
How much water added to convert a 10 percent solution to 02 percent solution?
add 4 parts water per part solution
How much water should be added to four liters of 75 percent alcohol to make a mixture of 30 percent alcohol?
There are 3 litres of alcohol in your starting mixture of 4 litres. If you add 6 litres of water you will have 3 litres of alcohol in a total of 10 litres. This is the required strength.
How much salt must be added to 60kg of a 20 percent solution of salt to increase it to 40 percent solution of salt?
20%
How much water must be added to 12 L of a 40 percent solution of alcohol to obtain a 30 percent solution?
4 litres
How much of a ten percent solution should be added to two cups of twenty percent solution to make a twelve percent solution?
2%
How many liters of a 20 percent solution of acid should be added to 10 liters of a 30 percent solution of acid to obtain a 25 percent solution?
10 liters.
A 280 mL solution is 20 percent salt How much water should be added to make the solution 14 percent salt?
98 mL
How many ml should be added to 100ml of a 25 percent solution to get produce a 20 percent solution?
add 25ml more of solution x * 20 = 100 * 25 x = 25
How much water must be added to 40 ml of a 25 percent by weight solution to make a 2 percent by weight solution?
About 80ml of water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution.
How much sodium bicarb should be added to make 8.4 percent solution 500 ml?
42
How much of an 18 percent solution of sulfuric acid should be added to 360 ml of a 10 percent solution to obtain a 15 percent solution?
To determine the amount of 18% solution to add: Let x = volume of 18% solution to be added. 0.18x + 0.10(360) = 0.15(x + 360) Solving for x, you would need to add 75 ml of the 18% solution to the 360 ml of 10% solution to obtain a 15% solution.
How many liters of water must be added to 30 liters of 20 percent ALCOHOL solution to dilute it to a15 percent solution?
You have 6 litres of alcohol in 24 litres of water You need to add x litres to make 6 equal to 15% of 30 + x. 6 is 15% of 40, so x = 10
What kind of precipitate is formed when alcohol is added to denatured DNA?
When alcohol is added to denatured DNA, a white stringy precipitate of DNA will form. The DNA precipitates out of the solution because of its insolubility in alcohol, allowing it to be separated from the rest of the solution.
How much water should be added to 16ml of 9 percent alcohol solution to reduce the concentration to 8 percent?
The way I would do this is to first determine the amount of alcohol and that would be 0.09 x 16 ml = 1.44 ml then I would ask myself (0.08 * x) = 1.44 Therefore to have an 8% solution we would have a total of 18 ml of solution (by solving the above equation), thus we would have to add 2 ml of water (18 ml - 16 ml).
Why is alcohol added the DNA solution?
Alcohol is added to the DNA solution to help precipitate the DNA out of the solution. This allows the DNA to be separated from other cellular components such as proteins and lipids. The DNA can then be collected and further analyzed or used in experiments.
