Question

How many atoms are in a sample of 2.89 moles of potassium (K)?

Answer 1

Answer:

The answer is

1.74 × 10²⁴ potassium atoms

Explanation:

To find the number of atoms given the number of moles we use the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

n = 2.89 moles

We have

N = 6.02 × 10²³ × 2.89

We have the final answer as

1.74 × 10²⁴ potassium atoms

Hope this helps you