1. What is Molar Mass?

Molar mass is the mass of one mole of a substance (usually in grams per mole). For NaCl (sodium chloride) gas, the molar mass is 58.44 g/mol, which is the sum of the atomic masses of sodium (22.99 g/mol) and chlorine (35.45 g/mol).

2. How Does the Calculator Work?

The calculator uses the molar mass formula:

Where:

• Mass — Given in grams (must be > 0)
• Molar Mass — Fixed at 58.44 g/mol for NaCl gas
• Moles — Result in moles of NaCl

3. Importance of Molar Mass Calculation

Details: Knowing the molar mass allows conversion between mass and moles, which is fundamental in chemical calculations, stoichiometry, and gas law applications.

4. Using the Calculator

Tips: Enter the mass of NaCl in grams. The calculator will compute the number of moles based on the fixed molar mass of NaCl gas (58.44 g/mol).

5. Frequently Asked Questions (FAQ)

Q1: Is the molar mass different for NaCl solid and gas?
A: No, the molar mass is the same (58.44 g/mol) regardless of physical state, as it depends only on the molecular formula.

Q2: Why is the molar mass 58.44 g/mol?
A: It's the sum of the atomic masses of sodium (22.99 g/mol) and chlorine (35.45 g/mol) from the periodic table.

Q3: How precise is this value?
A: The value 58.44 g/mol uses average atomic masses accounting for natural isotope abundance. For ultra-precise work, exact isotopic composition matters.

Q4: Can I calculate mass from moles?
A: Yes, simply rearrange the formula: Mass = Moles × Molar Mass.

Q5: Does this work for other substances?
A: This calculator is specific to NaCl. Other substances have different molar masses.