Ask your own question, for FREE!
Chemistry 22 Online
zarkam21:

The molecular formula mass of this compound is 240 amu . What are the subscripts in the actual molecular formula?

Vocaloid:

Does it give you the empirical formula?

zarkam21:

1 attachment
zarkam21:

1 attachment
zarkam21:

Continuation of part A

Vocaloid:

Oh then just find the molar mass of CH2O Then, dividing 240/molar mass of CH2O will tell you how much to multiply the subscripts by

Vocaloid:

Ex: if 240/molar mass of CH2O gives you 3, then CH2O becomes C3H6O3 (this isn’t the solution just giving an example)

zarkam21:

30.031

zarkam21:

is the molar mass

zarkam21:

so divide that by the amu given?

Vocaloid:

Yes, then 240/30.031 is about 8

Vocaloid:

So multiply CH2O by 8

zarkam21:

okay so 8 C 16 H and 24 O

zarkam21:

8 O

Vocaloid:

Hm not quite Only 1 oxygen atom on CH2O so C8H16O8

zarkam21:

sorry

Vocaloid:

Anyway I gotta get to class but I’ll probably be on tonight

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!