Can someone please check-over these Chemistry problems? (My answer is in bold.)

Question

*An empirical formula is a molecular formula _______.

A. without coefficients

B. without subscripts

C. in scientific notation

D. reduced to the ratio of atoms involved

E. None of the Above

*Which of the following is NOT an empirical formula?

A. H2O

B. CO2

C. C3H4O

D. C6H12O6

E. None of the Above

Answer 1

I would agree with both your answers with the possible exception of the first question. You choice is the best of the options, but I think it should specify that it is "reduced to the lowest whole number ratio of atoms involved."

For example, C6H12O6 could be reduced to C3H6O3 which would not be the empirical formula. Reducing it further to CH2O would be the empirical formula.