Question

Calculation of molecular mass of NH2coNH2

Answer 1

Final answer: Molecular mass of $NH_{2}CONH_{2}$ $=60$ $\frac{g}{mol}$

Given that: We are given $NH_{2}CONH_{2}$.

To find: We have to find the molecular mass.

Explanation:

• We know that the molar mass or molecular mass of a substance or a compound is the mass in grams of one mole of that substance or that compound.

That is, the molar mass is the weight of one sample mole.

It is the sum of the atomic masses of all atoms in a compound, also, multiply the subscript (number of atoms) times that element’s atomic mass.

Molar mass is typically expressed in $\frac{g}{mol}$.

• Here we are given the chemical formula: $NH_{2}CONH_{2}$

Which is urea.

The atomic mass of nitrogen ($N$), $Z=14$

The atomic mass of hydrogen ($H$), $Z = 1$

The atomic mass of carbon ($C$), $Z = 12$

The atomic mass of oxygen ($O$), $Z = 16$

• Here, given $NH_{2}CONH_{2}$ compound contains two nitrogen atoms, four hydrogen atoms, one carbon atom and one oxygen atom.

Therefore the molecular mass of given $NH_{2}CONH_{2}$ compound $= 2 (N) + 4 (H) + 1 (C) + 1 (O)$

$=(2\times 14)+(4 \times 1)+(1\times 12)+(1\times 16)$

$=28+4+12+16$

$=60$ $\frac{g}{mol}$

Molecular mass of $NH_{2}CONH_{2}$ $=60$ $\frac{g}{mol}$

To know more about the concept please go through the links

https://brainly.in/question/16082974

https://brainly.in/question/670967

#SPJ1