If a buffer is made by mixing an hcl solution with a ch3nh2 solution, what would the pka of the buffer be? chegg.

30litre of li2o is 1.0002mole approximately 1 mole

They can measure  the amount of energy gained or lost

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 .