The density of an aqueous solution containing 10.0 percent of ethanol (c2h5oh) by mass is 0.984 g/ml. (a) calculate the molality of this solution. (b) calculate its molarity. (c) what volume of the solution would contain 0.125 mole of ethanol?

Variables,control,conclusion and finally scientific theory

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .