Question

Calculate both the average mass of a single molecule of carbon dioxide and glucose and the

molecular weight of these compounds​

Answer 1

Answer:

Explanation:

As we know,

No. of molecules =no. of moles *Avogadro Number

No. Of moles would be=No. of molecules /Avogadro number

No. Of moles = 1/6.022*10^23. [Avogadro number =6.022*10^23]

We will not do calculations at this point, we will later solve this

And we also know,

No. of moles = mass of compound /molecular weight of the compound

And we have to find mass of compound, so

Mass=No. of moles *molecular weight of CO2

Molecular weight of CO2=(1*12+2*16). As atomic mass of carbon and oxygen are 12&16respectively

12+32=44

Mass=1/6.022*10^23 *44

Mass =7.3065*10^23gm

I haven't done calculations myself, I have use the calculator

So you can use

At last, mass of one molecule of CO2 is 7.3065*10^23gm.

Answer 2

The molecular mass and the formula mass of a compound are obtained by adding together the atomic masses of the atoms present in the molecular formula or empirical formula, respectively; the units of both are atomic mass units (amu). The mole is defined as the amount of substance that contains the number of carbon atoms in exactly 12 g of carbon-12, Avogadro’s number (\(6.022 \times 10^{23}\)) of atoms of carbon-12.