A compound containing cobalt and oxygen has a mass of 7.500 g. when heated it breaks down to form 5.331 g of cobalt. calculate empirical formula

that's what i got you can count the number of atoms

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

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;