Sujet: acid liste de sujets
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11 articles trouvés pour ce sujet.

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	A sulphuric acid solution		2018-07-12
		Tan pose la question : How much 96% h2so4 to add into sulphuric acid 30% in order to make it to 50% sulphuric acid? Penny Nom lui répond.
	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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