1.

A solution contains 50 mL of alcohol mixed with 150 mL of water. Calculate the concentration of this solution.​

Answer»

25%EXPLANATION:VOLUME of solute= 50ml Volume of solvent= 150ml ∴ Total volume= 150+50=200ml CONCENTRATION=   Volume of solution Volume of solute ​ ×100                        =  200 50 ​ ×100                        =25%



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