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Mathematics, 18.11.2019 21:31 alimfelipe
How much of a 7% hcl acid solution needs to be mixed with how much of a 15% hcl acid solution so that you obtain 20ml of a 12% hcl solution?
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How much of a 7% hcl acid solution needs to be mixed with how much of a 15% hcl acid solution so tha...
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