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What strength of 20 ml acid should be added to 10 ml of 50 percent acid to get an average strength of 20 percent acid?
The formula is M1V1 + M2V2 = MtVt
You know V1, M2, V2, Mt and Vt and the units all match, so simply plug the numbers in and solve:
M1(20) + (50)(10) = (20)(30)
20M1 + 500 = 600
20M1 = 100
M1 = 5
You should add 20 ml of 5% acid to 10 ml of 50% acid to get an acid strength of 20%.
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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 much water must be added to 40ml of a 25 percent by weight solution to make a 2 percent by weight solution?
To make a 2% solution from a 25% solution, you need to dilute it. Let x ml be the amount of water needed. Using the equation for mass balance: 0.25(40) = 0.02(40 + x), solve for x to find that x = 875 ml of water needs to be added.
What colour should the leaf turn when iodine is added?
The leaf should turn blue-black when iodine is added, indicating the presence of starch.
What colour does acid turn when added to universal indicator?
When acid is added to universal indicator, the indicator will typically change to shades of red, orange, or yellow, depending on the strength of the acid.
What does mo 925 on jewelry mean?
92.5 percent pure silver. MO stands for Modena Italy
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 much of a 50 percent solution should be added to 1 liter to make a 25 percent solution?
Mix this 50% solution in equal quantities with water(?) to halve it's strength. So use 1 litre of the 50% solution and 1 litre of water of that's what you are diluting it with.
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.
What is 10 percent added to 4.86?
10 percent added to 4.86 is 5.346.
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 much sodium bicarb should be added to make 8.4 percent solution 500 ml?
42
What is 32 percent added to 775 dollars?
32 percent added to 775 dollars = 807
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
What is 10 percent added to 53?
63
Why 2 percent gypsum is added to the cement?
Because the gypsum only needs 2 percent added to the mix
Why should deodrant not be heated?
deodorant should not be heated because all the particles inside don\'t have the strength to get heated because of all the heat that\'s added to it.
