A Methanol (CH3OH) burns with air. The product gas is analyzed, and the laboratory report gives only the following percentages on a dry molar basis: 7.1% CO2, 2.4% CO, 0.84% CH3OH. Assuming the remaining components consist of O2 and N2, determine a) the percentages of O2 and N2 in the dry molar analysis. b) the percent excess air.

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 .

The correct answer is "atomic weight".