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2 years ago

How many moles are in 8.30x10^23 molecules of H2o

Chemistry

2 answers:

sasho [114]2 years ago

8 0

Answer: 1.38 moles

Explanation: According to Avogadro's law, 1 mole of every substance contains Avogadro number of particles (atoms, molecules or ions) i.e. $6.023\times 10^{23}$ particles.

Given : 1 mole molecule of water contains $6.023\times 10^{23}$ molecules of water.

$6.023\times 10^{23}$ molecules are present in = 1 mole

$8.30\times 10^{23}$ molecules will be present in = $\frac{1}{6.023\times 10^{23}}\times 8.30\times 10^{23}=1.38 moles$

Thus $8.30\times 10^{23}$ molecules is equal to 1.38 moles.

LUCKY_DIMON [66]2 years ago

4 0

You multiply avogadro's number to what you were given.
8.30x10^23 * 6. 0221409x10^23
=1.357*10^25

That should be the right answer but I'm not sure. It has been awhile since I have done this.

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<h3>Further explanation</h3>

Stoichiometry in Chemistry studies about chemical reactions mainly emphasizing quantitative, such as the calculation of volume, mass, amount, which is related to the number of ions, molecules, elements, etc.

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While the number of moles can also be obtained by dividing the mass (in grams) by the relative mass of the element or the relative mass of the molecule

$\large{\boxed{\bold{mol\:=\:\frac{grams}{ relative\:mass} }}}$