A compound is 40.0 % carbon, 6.66% hydrogen, and 53.3 % oxygen. The
sample is also found to have a molecular weight of 60 g/mol. What is the
molecular formula of this compound? *

C202H4

COH

C202H2

COH2

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error