1. What is Et2en?

Et2en (C₄H₁₀N₂), also known as N,N'-diethylethylenediamine, is a chemical compound used in various chemical synthesis processes. It's a derivative of ethylenediamine with two ethyl groups.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( C \) — Atomic mass of Carbon (default: 12.011 g/mol)
• \( H \) — Atomic mass of Hydrogen (default: 1.008 g/mol)
• \( N \) — Atomic mass of Nitrogen (default: 14.007 g/mol)

Explanation: The molar mass is calculated by summing the atomic masses of all atoms in the molecule, multiplied by their respective counts.

3. Importance of Molar Mass Calculation

Details: Knowing the molar mass is essential for stoichiometric calculations, solution preparation, and chemical reaction balancing in chemistry.

4. Using the Calculator

Tips: Enter the atomic masses for each element. Default values are IUPAC recommended atomic weights. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical molar mass of Et2en?
A: Using standard atomic weights, the molar mass is approximately 86.136 g/mol (4×12.011 + 10×1.008 + 2×14.007).

Q2: Why are the atomic masses not whole numbers?
A: Atomic weights account for natural isotopic abundance. For example, carbon exists as both C-12 and C-13 isotopes.

Q3: Can I use this for other compounds?
A: This specific calculator is only for C₄H₁₀N₂. The same principle applies to other compounds but with different atom counts.

Q4: How accurate is this calculation?
A: The accuracy depends on the precision of your input values. Using more precise atomic masses will yield more accurate results.

Q5: What's the difference between molecular weight and molar mass?
A: They are numerically equivalent but molar mass is expressed in g/mol while molecular weight is dimensionless.