1. What is Molar Mass?

Molar mass is the mass of one mole of a substance (chemical element or chemical compound). It is a physical property defined as the mass of a given substance divided by the amount of substance in moles.

2. How Does the Calculator Work?

The calculator uses the molar mass formula:

Where:

• \( MM \) — Molar mass (g/mol)
• \( \text{atomic masses} \) — Standard atomic weights of elements
• \( \text{counts} \) — Number of atoms of each element in the formula

Explanation: The calculator parses the chemical formula, identifies each element and its count, then sums the products of each element's atomic mass and its count in the formula.

3. Importance of Molar Mass

Details: Molar mass is essential for converting between mass and moles of a substance, which is fundamental in stoichiometric calculations, solution preparation, and chemical analysis.

4. Using the Calculator

Tips: Enter the chemical formula using standard notation (e.g., H2O for water, C6H12O6 for glucose). The calculator recognizes element symbols (case-sensitive) and subscripts.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between molecular mass and molar mass?
A: Molecular mass is the mass of one molecule (in atomic mass units), while molar mass is the mass of one mole of molecules (in grams per mole).

Q2: How accurate are the atomic masses used?
A: The calculator uses standard atomic weights from IUPAC. For precise work, use isotope-specific masses.

Q3: Does the calculator work with complex formulas?
A: It handles most simple formulas. For hydrates (e.g., CuSO4·5H2O) or complex ions, enter them separately.

Q4: What if I get an incorrect result?
A: Check your formula for typos. Element symbols are case-sensitive (Na for sodium, not NA).

Q5: Can I use parentheses in formulas?
A: This basic version doesn't support parentheses. For formulas like Ca(OH)2, calculate each part separately.