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Un article trouvé pour ce sujet.
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Dilution of concentrated acid |
2013-07-31 |
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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. |
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