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How many ml of 40 percent acid should be added to pure acid to make 75 ml of 65 percent acid?
The total volume of the new acid solution is 75 mL, and this solution is 65%, so the amount of acid in this solution is (0.65)*75mL = 48.75 mL
You have two equations and two unknowns:
x + y = 75
(0.40)*x + (1)*y = 48.75 {0.40 represents 40% and 1 represents 100% pure}
Solve and get x = 43.75 and y = 31.25, so you need 43.75 mL of the 40% acid and 31.25 mL of the pure acid.
What else can I help you with?
How much sodium bicarb should be added to make 8.4 percent solution 500 ml?
42
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 of water should be added to 95 percent ethyl alcohol to make 1 liter of a 30 percent ethyl alcohol solution?
684 ml
How much pure acid should be added to 50 ml of a 10 percent acid solution to give a 50 percent acid solution?
A 50 ml solution that is 10% acid will consist of 5 ml of acid (10% of the volume) and 45 ml of water (90% of the volume). You're not adding any water, but you want to add enough acid to make a solution that is 50% acid and 50% water. You will need to have a total of 45 ml of acid in the mixture to make it a 50/50 solution, since the amount of water is also 45 ml. You have 5 ml in there already, so you would need to add 40 ml of acid. That would make a total 90 ml solution that is 50% water (45 ml) and 50% acid (45 ml).
How many liters of 93 percent acid solution are needed to make a 9 percent solution with 50 liters of water?
4.84
How much acid and chlorine should be added to a 5000 liter swimming pool?
How much acid and chlorine should be added to a 5000 liter to make 5 ppm solution
What acid Is added to sugar to make carbon?
Sulfuric acid is added to sugar to make carbon
How much of a ten percent solution should be added to two cups of twenty percent solution to make a twelve percent solution?
2%
A chemist has one solution which is 50 percent acid and a second solution which is 25 percent acid how much of each should be mixed to make a 10 liters of a 40 percent acid solution?
6 litres of 50% + 4 litres of 25%
How much sodium bicarb should be added to make 8.4 percent solution 500 ml?
42
What make soluble in water will fizz when hydrochloric acid is added?
is soluble in water and will fizz when hydrochloric acid is added
A 280 mL solution is 20 percent salt How much water should be added to make the solution 14 percent salt?
98 mL
A chemist has one solution that is 80 percent acid and another solution that is 30 percent acid How much of the second 30 percent solution is needed to make a 400 L solution that is 62 percent acid?
144liters
How many grams of acetic acid should be dissolved in 100 grams of water to make a 4.0 percent by mass?
4.0% by mass means 4.0 grams of acetic acid in 100 grams of solution. Therefore, 4.0 grams of acetic acid should be dissolved in 100 grams of water to make a 4.0% solution.
Jorge has four liters of 30 percent acid solution how much water should he add to make 25 percent acid solution'?
Jorge needs to add 2 liters of water to the 30% acid solution to make a 25% acid solution. This can be calculated using a dilution formula: initial acid amount / final total amount = final acid concentration.
How many ml of water should be added to 95 percent ethyl alcohol to make 1 liter of a 30 percent ethyl alcohol solution?
684 ml
How much pure acid should be added to 50 ml of a 10 percent acid solution to give a 50 percent acid solution?
A 50 ml solution that is 10% acid will consist of 5 ml of acid (10% of the volume) and 45 ml of water (90% of the volume). You're not adding any water, but you want to add enough acid to make a solution that is 50% acid and 50% water. You will need to have a total of 45 ml of acid in the mixture to make it a 50/50 solution, since the amount of water is also 45 ml. You have 5 ml in there already, so you would need to add 40 ml of acid. That would make a total 90 ml solution that is 50% water (45 ml) and 50% acid (45 ml).
