Question

Find the number of atoms argon in 12.0 L of argon at STP

Answer 1

3.23 x 10²³ atoms

Explanation:

Given parameters:

Volume of Argon atoms = 12L

Condition = STP

Unknown:

Number of atoms = ?

Solution:

We start from the known to the unknown. We know the volume of gas at STP to be 12L;

using the equation below, we can solve for the number of moles and find the amount of atoms.

   Number of moles = $\frac{Volume of Argon gas}{22.4}$

   Number of moles = $\frac{12}{22.4}$ = 0.54mole

  1 mole of substance contains 6.02 x 10²³ atoms

   0.54 mole will contain 6.02 x 10²³  x 0.54 = 3.23 x 10²³ atoms

learn more:

Number of atoms brainly.com/question/10419836

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