ChemyMass

Simple Molar Mass Calculator

📝 Description

ChemyMass - Simple molar mass calculator. Calculates molar mass for any valid formula.

🔧 Setup

ChemyMass is easy to setup, just do:

npm i chemymass

📕 Usage

To require ChemyMass in your program do:

const chemymass = require("chemymass");

Ways to call module from your program:

// Standard Long Mode - Get molar mass and element percentages:
const formula = "H₂SO₄";
const precision = 3;
console.log(chemyMass(formula, precision));

// Standard Short Mode - Get only number:
const formula = "H₂SO₄";
const precision = 7;
console.log(chemyMass.short(formula, precision));

// CAS Mode - Get molar mass and element percentages from formula CAS Number:
const casNr = "7664-93-9";
const precision = 2;
chemyMass.cas(casNr, precision)
  .then(output => console.log(output));

//CAS Short Mode - Get only number from formula CAS Number:
const casNr = "7664-93-9";
const precision = 2;
chemyMass.casShort(casNr, precision)
  .then(output => console.log(output));

📰 Notes

• Precision is optional parameter which defaults to 3 if not passed to function.
• Crystal Hydrates like CaSC₄·2H₂O or Na₂SO₄·10H₂O have to be written without multiplication sign like this: CaSC₄(H₂O)₂ and Na₂SO₄(H₂O)₁₀.
• This module understands both normal numbers and subscripts. You don't have to specifically convert them.

👨‍⚖️ License

ChemyMass by EEHoveckis is licensed under a Creative Commons Attribution 4.0 International License. Permissions beyond the scope of this license may be available on request.