Question

How to calculate the number of moles in 6.6 g of ascorbic acid vitamin C equals ${{\text{C}}_{\text{6}}}{{\text{H}}_{\text{8}}}{{\text{O}}_{\text{6}}}$ equals 176 g/moles?

Answer 1

We know that the mol is an SI unit which is used to donate the number of particles in a given substance. Here, we have to calculate the moles of ascorbic acid present in 6.6 g of ascorbic acid. For that, we have to use the formula, Number of moles=$\dfrac{{{\text{Mass}}}}{{{\text{Molar}}\,{\text{mass}}}}$.

Complete step by step answer:
The mass of ascorbic acid is given as 6.6 g and the molar mass of ascorbic acid is 176 g/moles.
Number of moles=$\dfrac{{{\text{Mass}}}}{{{\text{Molar}}\,{\text{mass}}}}$.
$\Rightarrow$Moles of${{\text{C}}_{\text{6}}}{{\text{H}}_{\text{8}}}{{\text{O}}_{\text{6}}}$
=$\dfrac{{6.6\,{\text{g}}}}{{176\,{\text{g}}\,{\text{mo}}{{\text{l}}^{ - 1}}}} = 0.038\,{\text{mol}}$

So, the number of moles of ascorbic acid present in 6.6 g of it is 0.038 mol.

Additional information:
The mole or mol (abbreviation form) is the unit which measures the amount of substance present. A mole is the term that defines the number of carbon (C) atoms in 12 g of pure carbon. After so many years of experiment, it has been proved that a mole of anything contains $6.022 \times {10^{23}}$ representative particles.

Note: Ascorbic acid is the vitamin C found mainly in citrus fruit. It is very essential for our body. Deficiency of this vitamin causes scurvy. Some of the foods where vitamin C is found are lemon, orange etc. It is an essential nutrient which involves the repairing of the tissue and enzyme production. Long doses of vitamin C cause headache, discomfort, skin disease etc. It is the first vitamin that can be chemically synthesized. This vitamin is required for functioning of many enzymes and it is important for proper functioning of the immune system.