How many atoms are in 8.1 moles of oxygen? and how do you know?

4.88 x 10²⁴atoms

Explanation:

Given parameters:

Number of moles of oxygen = 8.1moles

Problem:

To find the number of atoms in 8.1moles of oxygen.

Method in solving the problem:

We know that a mole of a substance contains Avogadro’s number of particles which is 6.02 x 10²³

The particles can be molecules, atoms, etc.

Solution:

From the concept of mole,

Number of atoms =

number of moles x 6.02 x 10²³

Number of atoms = 8.1 x 6.02 x 10²³

Number of

atoms of oxygen = 48.8 x 10²³ atoms

= 4.88 x 10²⁴atoms

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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the answer to this question is 3.