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acid

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10 articles trouvés pour ce sujet.
 
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A mixture problem 2013-08-11
MJ pose la question :
How many liters of pure acetic acid must be mixed with 3 liters of a 30% acetic acid to obtain a mixture of 65%?
Penny Nom lui répond.
Dilution of concentrated acid 2013-07-31
Adom pose la question :
I have 500mls of 90% conc. of an acid. Now I need to prepare 20% concentration from this (say 100mls of this). How much of the stock solution do I take and how much water to add? Thanks!
Penny Nom lui répond.
A 25% sulfuric acid solution 2012-05-03
Scott pose la question :
In order to make a 25% solution with 96% Sulfuric Acid, how much of the Sulfuric do I add to DI water to make up 2000ml??
Penny Nom lui répond.
A solution of 45% acetic acid 2009-09-28
Autumn pose la question :
if a chemist has a 4 liter solution that consists of 90% acetic acid, how much water does he need to produce a solution of 45% acetic acid?
Penny Nom lui répond.
A water acid mixture 2008-08-19
Sulagna pose la question :
A chemical solution is made by mixing an acid with water in the ratio 1:24. This solution is then taken and mixed with water in the ratio 1:3. How much acid would be there in 200ml of this final solution?
Penny Nom lui répond.
2500mL of Phosphoric acid 2008-04-09
Trina pose la question :
If I have 2500mL of Phosphoric acid that has a fluoride concentration of 0.91% and need to increase it to 1.40% how much 49% HF do I need to add?
Harley Weston lui répond.
The number of grams of sulfuric acid 2007-05-31
cookie pose la question :
Hi,
Can you please let me know if I've done this correctly?

Calculate the number of grams of sulfuric acid in 0.500L of battery acid if the solution has a density of 1.28 g/mL and is 38.1% sulfuric acid by mass.

Stephen La Rocque lui répond.
Diluting an acid solution 2006-02-25
Alex pose la question :
IF YOU HAVE 1 Litre OF A 70% ACID SOLUTION, AT WHAT RATIO DO YOU DILUTE IT WITH WATER TO ACHIEVE A 30% AND 50% ACID SOLUTION?
Penny Nom lui répond.
A mixture problem 2004-09-30
Abraham pose la question :
A chemist has one solution that is 35% pure acid and another solution that is 75% pure acid. How many cubic centimeters of each solution must be used to produce 80 cubic centimeters of solution that is 50% acid?
Penny Nom lui répond.
A mixture problem 2003-07-10
A student pose la question :
Having a problem with word problems. example A chemist mixes a 10% acid solution with a 50% acid solution to form 400mL of a 40% solution. How much of each solution should be used.
Penny Nom lui répond.
 
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