The reaction of 86.4 g of acetic anhydride, C4H6O3, with excess salicylic acid produces 53.5 g of aspirin, C9H8O4, according to the balanced equation below. What is the percent yield for this experiment?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

List the path of the respiratory system

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.