NaHCO3 Molar Mass Calculator University of Sydney

Sodium Bicarbonate (NaHCO₃) Molar Mass Calculation:

\[ MW = 84.007 \, g/mol \]

Moles of NaHCO₃:

Molar Mass:

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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. NaHCO₃ Composition

Sodium bicarbonate (NaHCO₃) consists of:

1 Sodium (Na) atom: 22.990 g/mol
1 Hydrogen (H) atom: 1.008 g/mol
1 Carbon (C) atom: 12.011 g/mol
3 Oxygen (O) atoms: 3 × 15.999 = 47.997 g/mol

Total: 22.990 + 1.008 + 12.011 + 47.997 = 84.006 g/mol (rounded to 84.007 g/mol)

3. Calculation Method

Formula: \[ \text{Moles} = \frac{\text{Mass (g)}}{\text{Molar Mass (g/mol)}} \]

Example: For 10 grams of NaHCO₃: 10 g ÷ 84.007 g/mol = 0.1190 moles

4. Using the Calculator

Instructions: Enter the mass of sodium bicarbonate in grams to calculate the corresponding number of moles.

5. Frequently Asked Questions (FAQ)

Q1: Why is the molar mass important?
A: Molar mass is essential for converting between mass and moles, which is fundamental in stoichiometric calculations.

Q2: How accurate is this value?
A: The 84.007 g/mol value is based on IUPAC atomic weights and is accurate for most laboratory purposes.

Q3: Does this calculator work for other compounds?
A: No, this is specific to sodium bicarbonate. Each compound has its own unique molar mass.

Q4: What are common uses of NaHCO₃?
A: Baking soda is used in cooking, as a cleaning agent, in personal hygiene products, and as a mild disinfectant.

Q5: Where can I learn more about molar mass calculations?
A: The University of Sydney Chemistry Department offers excellent resources on stoichiometry and chemical calculations.