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Mathematics, 06.10.2021 01:00 huddyxo

a chemist named Mr nobel has 20 ml of a solution that is 40% acid. He wants to increase the acid content of the solution to make it a 60% acid solution. How many mL of pure acid should he add to the solution.

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a chemist named Mr nobel has 20 ml of a solution that is 40% acid. He wants to increase the acid con...
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