Hi, R3volution, and welcome to PerlMonks!

Perhaps the Module Chemistry::MolecularMass would be helpful to you. The following example, but using H2O, was adapted from the Module's site:

use strict;
use warnings;
use Chemistry::MolecularMass;

my $chemical = 'H2O';
my $mm       = new Chemistry::MolecularMass;
my $mass     = $mm->calc_mass($chemical);

if ( defined $mass ) {
    print "The mass of $chemical is: $mass";
}
else {
    print "Unable to calculate the mass of $chemical";
}

[download]

Output:

The mass of H2O is: 18.01528

[download]

In reply to Re: Assistance please by Kenosis
in thread Assistance please by R3volution

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