You need a 25% alcohol solution. On hand, you have a 45 mL of a 15% alcohol mixture. You also have 30% alcohol mixture. How much
of the 30% mixture will you need to add to obtain the desired solution?
1 answer:
A 75% alcohol concentration mixture of water and alcohol and was made by mixing 30 ml of pure alcohol with 150 ml of original mixture
Maths
How much pure alcohol has to be added to 400ml of a solution containing 15% alcohol to
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