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
Junaid Mirza
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.

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