NH3 Molar Mass Calculator University of Sydney

NH3 Molar Mass Calculation:

\[ \text{Molar Mass (NH₃)} = 14.007 + (3 \times 1.008) = 17.031 \text{ g/mol} \]

Mass of NH3:

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1. What is NH3 Molar Mass?

The molar mass of ammonia (NH3) is 17.031 g/mol, calculated by summing the atomic masses of one nitrogen atom (14.007 g/mol) and three hydrogen atoms (3 × 1.008 g/mol). This value is essential for stoichiometric calculations in chemistry.

2. How Does the Calculator Work?

The calculator uses the molar mass formula:

\[ \text{Mass} = \text{Amount (moles)} \times \text{Molar Mass (g/mol)} \]

Where:

Molar Mass of NH₃ — 17.031 g/mol
Amount — Moles of NH₃

Explanation: The calculation converts between moles and grams using the fixed molar mass of ammonia.

3. Importance of Molar Mass Calculation

Details: Accurate molar mass calculations are fundamental for preparing solutions, reaction stoichiometry, and gas law calculations in chemistry.

4. Using the Calculator

Tips: Enter the amount of NH3 in moles. The calculator will output the equivalent mass in grams.

5. Frequently Asked Questions (FAQ)

Q1: Why is the molar mass of NH3 17.031 g/mol?
A: It's the sum of the atomic masses: N (14.007) + 3×H (3×1.008) = 17.031 g/mol.

Q2: How accurate is this calculator?
A: It uses the IUPAC recommended atomic masses with 4 decimal places for precision.

Q3: Can I calculate grams to moles with this?
A: Currently this calculates moles to grams. The inverse calculation could be added in future.

Q4: Does this account for isotopic variations?
A: No, it uses standard atomic weights. For precise work with isotopes, exact masses should be used.

Q5: What's the University of Sydney connection?
A: The University of Sydney's chemistry department recommends this standard calculation method.