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Problem 1856. Molecule Atomic Wt (CHONS) Molecules

Created by Richard Zapor

Given a molecular equation string determine its atomic weight.

Limited atoms of C H O N and S where wts are rounded to [12 1 16 14 32].

Example molecules and wts:

CH4 16; CH3OH 32; O2 32; C6H6 78; H2SO4 98; radical SO4 96;

Input: Molecular Eqn [string with no spaces, all Caps]

Output: Molecular Wt [approx wt]

Source:

Saw this as a question on Matlab Answers.

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26 correct solutions 8 incorrect solutions
Last solution submitted on Jun 28, 2014

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