Which compound has the empirical formula with the greatest mass? A. C_2 H_6 B. C_4 H_10 C. C_5 H_10 D. C_6 H_6

I came across this question and it says the answer is B and I am unsure how they got the answer.

1 Answer
Jun 8, 2018

"B. C"_4"H"_10

Explanation:

bb"Formula" color(white)(.......) bb"Emperical" color(white)(.......) bb"Emperical formula"
underline(color(white)(.........................) bb"formula" color(white)(...........) bb"mass (g/mol)" color(white)(......))
"C"_2"H"_6 color(white)(.....................) "CH"_3 color(white)(........................) 15
"C"_4"H"_10 color(white)(...................) "C"_2"H"_5 color(white)(........’............) 29
"C"_5"H"_10 color(white)(...................) "CH"_2 color(white)(........................) 14
"C"_6"H"_6 color(white)(.....................) "CH" color(white)(.............. ........) 13

Mass of "C"_2"H"_5 (which is emperical formula of "C"_4"H"_10) is greatest compared to emperical formula mass of other options.