1. What is Na2S Molar Mass?

Na2S (sodium sulfide) has a molar mass of 78.045 g/mol. This value is calculated by summing the atomic masses of its constituent elements: 2 sodium (Na) atoms and 1 sulfur (S) atom.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( n \) — Amount of substance in moles (mol)
• \( g \) — Mass of Na2S in grams (g)
• 78.045 — Molar mass of Na2S (g/mol)

Explanation: The formula converts grams of Na2S to moles by dividing by the compound's molar mass.

3. Importance of Molar Mass Calculation

Details: Converting between mass and moles is fundamental in chemistry for stoichiometric calculations, solution preparation, and reaction yield predictions.

4. Using the Calculator

Tips: Enter the mass of Na2S in grams. The value must be positive. The result will be displayed in moles.

5. Frequently Asked Questions (FAQ)

Q1: What is the molar mass of Na2S?
A: The molar mass of sodium sulfide (Na2S) is 78.045 g/mol.

Q2: Why is molar mass important?
A: Molar mass allows conversion between mass and moles, essential for chemical calculations and laboratory work.

Q3: How accurate is this calculation?
A: The calculation is mathematically exact, but practical accuracy depends on the precision of your mass measurement.

Q4: Can this calculator be used for other compounds?
A: No, this is specific to Na2S. Each compound has its own unique molar mass.

Q5: What are common uses of Na2S?
A: Sodium sulfide is used in water treatment, paper production, and chemical manufacturing.