Halima O.

asked • 06/03/21

How much pure alcohol will you need to add to obtain the desired solution? I need help!

How much pure alcohol will you need to add to obtain the desired solution?

You need a 70% alcohol solution. On hand, you have a 270 mL of a 30% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?


You will need 

________- mL of pure alcohol 

to obtain 

 _______-mL of the desired 70% solution.


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