A chemist prepares 655.0 mL of a 6.0 M solution of phosphoric acid. He forgets to put the stopper in the flask, so two weeks later 48.0 mL have evaporated off. What is the new molarity of this solution?

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

it is b that is the answer.