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The Molecular Mass of (NH2)2CO: An Insight

 Molecular Mass is the sum of the atomic masses of the atoms in a molecule. When we talk about (NH2)2CO, or urea, this principle is no different.


is key to understanding a molecule’s properties and behavior. Knowing how to calculate it helps predict how a substance will behave in a reaction and lets chemists balance equations.

So, how do we calculate  Well, it’s pretty simple. We add up the atomic masses of all the atoms present in a molecule.

Diving into (NH2)2CO

Also known as urea, (NH2)2CO is an organic compound with significant applications, particularly in agriculture as a high-nitrogen fertilizer. It’s an interesting compound, isn’t it?

Now, let’s figure out the  of (NH2)2CO. We will break down the molecule and calculate the

Calculation of Molecular Mass for (NH2)2CO

To determine the  of (NH2)2CO, we need to break it down into its constituent atoms: Nitrogen (N), Hydrogen (H), Carbon (C), and Oxygen (O).

The calculation goes as follows:

  1. Molecular mass of Nitrogen (N): As there are 2 Nitrogen atoms in each molecule of urea, we multiply the atomic mass of Nitrogen (14.007) by 2.
  2. Molecular mass of Hydrogen (H): As there are 4 Hydrogen atoms in each molecule of urea, we multiply the atomic mass of Hydrogen (1.008) by 4.
  3. Molecular mass of Carbon (C): The atomic mass of Carbon is 12.011, and since we only have one atom of Carbon, we don’t need to multiply it.
  4. Molecular mass of Oxygen (O): The atomic mass of Oxygen is 15.999, and again, we have only one atom of it in urea, so no multiplication is needed.

Adding these all up gives us the of urea, which comes out to be about 60.056 g/mol.

Implications of the Molecular Mass

Knowing the molecular mass of urea can be useful in various applications. In chemical reactions, it allows chemists to balance their equations accurately. In industrial applications, it helps in determining the appropriate amount of urea to use.

Common Misconceptions 

A common mistake is confusing  with molar mass. While they share similar concepts,  is the mass of one molecule, while molar mass refers to the mass of a mole of molecules.


Understanding the of a compound like (NH2)2CO is crucial in both academic and industrial fields. It aids in balancing chemical equations and determining appropriate amounts for use in various applications.


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