Question

how many water molecules are in 4.0 moles of water

Answer 1

Explanation:

1 mole of any substance has 6.022x10^23 no of atoms/molecules (Avogadro number)

Therefore, 4 moles of water will have 4(6.022x10^23) number of water molecules.

=24.088 x 10^23

=2.4088 x 10^24

Hope it helped!

Answer 2

According to the Avogadro number, 1 mole of any substance contains $6.022*(10)^{23}$ atoms or molecules. 

As a result, 4 moles of water will contain $[4(6.022*(10)^{23})]$ water molecules.

which is equal to $[24.088*(10)^{23} ]$.

You only need to know that $6.022*(10)^{23}$ water molecules must be present in order for a given water sample to contain exactly 1 mole of water.

This serves as the definition of a mole and is known as Avogadro's constant. You can be certain that you have 1 mole of water if there are $6.022*(10)^{23}$ molecules present.

You now know that 4.0 moles of water are present in your sample. Avogadro's constant can be used as a conversion factor to determine how many water molecules are present.

Set up the conversion factor as shown if you want to find the number of molecules starting with moles.

$[4(6.022*(10)^{23})]$

By further calculation, we get that,

$[24.088*(10)^{23} ]$

Hence, the water molecules for 4.0 moles of water is $[24.088*(10)^{23} ]$.

For more such questions on Moles: https://brainly.in/question/23638920

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