Question

Рассчитайте молекулярную массу Глицерина с решением пожалуйcта !!!

Answer 1

C3H5(OH)3
Mr=3*Ar(C)+5*Ar(H)+3*Ar(H)+3*Ar(O)=3*12+5*1+3*16+3=92 г/моль

Answer 2

Calculation of the Molecular Mass of Glycerin

To calculate the molecular mass of glycerin, we need to determine the atomic masses of the elements present in its chemical formula and then sum them up.

The chemical formula of glycerin is C3H8O3. It consists of 3 carbon atoms (C), 8 hydrogen atoms (H), and 3 oxygen atoms (O).

To calculate the molecular mass, we multiply the atomic mass of each element by the number of atoms present and then sum them up.

The atomic masses of carbon (C), hydrogen (H), and oxygen (O) are approximately 12.01 atomic mass units (amu), 1.008 amu, and 16.00 amu, respectively.

Using these values, we can calculate the molecular mass of glycerin as follows:

Molecular mass of glycerin = (3 * atomic mass of carbon) + (8 * atomic mass of hydrogen) + (3 * atomic mass of oxygen)

Molecular mass of glycerin = (3 * 12.01 amu) + (8 * 1.008 amu) + (3 * 16.00 amu)

Molecular mass of glycerin = 36.03 amu + 8.064 amu + 48.00 amu

Molecular mass of glycerin = 92.094 amu

Therefore, the molecular mass of glycerin is approximately 92.094 atomic mass units (amu).

Please note that the atomic masses used in this calculation are approximate values and may vary slightly depending on the source.