'suppose you take 0.0332 kg of ammonium carbonate and dissolve it using 0.0395 kg of water. what would be the mass percent concentration of this solution? 'suppose you take 0.0332 kg of ammonium carbonate and dissolve it using 0.0395 kg of water. what would be the mass percent concentration of this solution?

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 .