[R] Need to Write a Code that can find the molecular weight of various compounds

[matthew.ttd.nguyen]

Hi!

Just started working at a lab and have only minimal experience with R.

I was wondering if there was a way to write a code that would intake a data
set of chemical compounds (ex: H2O, CH3)
and be able to give an output column of the molecular weight?

I tried some really basic coding to try to work with a being a matrix of
data with the assigned variables.

if (A<-'H') A<-a[50,3]
else (B<-'O') B<-a[86,3]

ifelse (A=='H',A<-a[50,3],ifelse(B=='O',B<-a[86,3],0]

I was thinking to have the program read the formula and compute the output
of molecular mass by reading information off of a separate data sheet with
the individual weights of the molecules, and then output that into another
column.

Any suggestions? Thanks!

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