Question

The weight of the molecule of the compound \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] is:
A. \[1.09\times {{10}^{-21}}g\]
B. \[3\times {{10}^{-22}}g\]
C. \[5.025\times {{10}^{-23}}g\]
C. \[16.023\times {{10}^{-23}}g\]

Answer 1

Hint: In chemistry, the formula weight is an amount figured by multiplying the atomic weight (in atomic mass unit) of every element in a chemical formula by the quantity of atoms of that element present in the formula, then putting all the products together.

Complete step by step solution:
Discovering molar mass begins with units of grams per mole (g/mol). While computing the molecular weight of a chemical compound, it discloses to us the number of grams in one mole of that substance. The formula weight is essentially the weight in atomic mass units of all the atoms in a given formula.
Weight of molecule of the compound \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]
Glucose (\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]) has six carbons, twelve hydrogen, and six oxygen atom. The atomic weight of \[C,H,O\]
Weight \[=12\times 6+12\times 1+16\times 6\]
Weight \[=72+12+96\]
Weight \[=180g/mol\]
1 mole\[\to 180g\]
Weight of 1 molecule \[\to 180\]
$\Rightarrow$ Weight of 1 molecule \[=6.022\times {{10}^{+23}}\]
$\Rightarrow$ Weight of 1 molecule \[=30\times {{10}^{-23}}\]
$\Rightarrow$ Weight of 1 molecule \[=3\times {{10}^{-22}}g\]

Hence, the correct option is B. \[3\times {{10}^{-22}}g\].

Additional Information: The chemical formula for glucose is \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]. Glucose is conveyed to our cells by means of the circulation system to use in cell breath. We get glucose from the food we eat. Glucose is the fundamental sort of sugar in the blood and is the significant wellspring of energy for the body's phones. Glucose originates from the nourishments we eat or the body can make it from different substances. Glucose is brought to the cells through the bloodstream.

Note: Utilizing the chemical formula of the compound and the periodic table of elements, we can include the atomic weight and calculate molecular weight of the substance. Formula weights are particularly helpful in deciding the relative weights of reagents and products. The relative weights from the substance condition are once in a while called equation weights.