Respuesta :

SantiagoSala

Hi there!

To find the mass of  1  mole of  H

2

O  look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.

mass of 1 mole of H20=2 and mass of H + mass of O

Now, fill the atomic masses from the periodic table.

mass of  1  mole of  H2O=2(1.00999999)+(16)

Simplify the result.

mass of  1  mole of  H2O=18.01999998g

Hope this helps you.

BiologiaMagister

Explanation:

The molar mass of an element is always equal to it's relative atomic mass. So, basically, all we need to solve this problem is a periodic table containing the relative atomic mass of an element.

Example:

If we have 1 mole of Mercury, we know that the relative atomic mass of Mercury is 200.59, and therefore, the molar mass is also 200.59.

Hope it helped,

BioTeacher101

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