Question

25ml of ethanol is present in 150ml of its aqueous solution. what is the concentration of the solution

Answer 1

Volume of solute = 25 ml.

Volume of solvent = 150 ml.

Volume of solution = volume of solute + volume of solvent
                                 = 25 ml +150 ml.
                                = 175 ml.

Volume by Volume percentage =    volume of solute  * 100
                                                       volume of solution

                                                = 25 *100
                                                      175
 
                                                = 14.28

#mark brainleist

Answer 2

mass of solute 25ml

mass of solvent 150ml

solution= mass of solute+mass of solvent
............. = 25+150= 175

. comcentration of the solution= mass of solute÷mass of solution= 25 ÷ 175x 100= 14.28