Question

How many grams are in \[2\] moles of carbon?

Answer 1

Hint: The mole is a unit to measure the amount of a substance in chemical terms. A mole is defined as the amount of substance which is equal to the molar mass of that substance.

Complete answer:
Carbon is an element in the periodic table with atomic number \[6\]. It consists of \[6\] protons, \[6\] electrons and \[6\] neutrons. The number of moles is determined by the amount of the substance present in a fixed quantity.
The mole concept is an important aspect in chemistry. It is very helpful in chemical calculations for obtaining the amount of substance required for a reaction.
The mole of a substance is defined as the amount of substance present in equal amount to the molecular weight or molar mass of an atom or a molecule. Also a mole is equal to the amount of substance which contains the number of atoms equal to \[6.023 \times {10^{23}}\].
The molar mass of a carbon atom is \[12amu\]. The unit \[amu\] stands for atomic mass unit. Thus for convenience of measurement we generally express the mass of the carbon atom is \[12g\].
From the above concept of mole we tell that one mole of carbon contains \[12g\] of carbon, which is the molar mass of carbon. So the amount of carbon present in \[2\] moles of carbon =\[2 \times 12{\text{ }}g = 24g\].

Hence \[24g\] of carbon is present in \[2\] moles of carbon.

Note: The molar mass is also termed as the total mass of one mole of a substance. The molar mass of water molecules is \[18g\]. So it is obvious that one mole of water contains \[18g\] of water. The unit of molar mass is \[g/mol\] or \[kg/mol\].