Question

What is the number of moles of chemical units represented by 9.03x10^24?

Answer 1

15 moles

Step-by-step explanation:

According to Avogadro’s number 1 mole of a substance has 6.023 x 1023 particles.

Particles could be atoms, molecules, ions, formula unit etc. Avogadro’s number allows scientists to manipulate very large number as real life material contain very large numbers of particles such as atoms, molecules, ions etc.

9.03 x 10²⁴ x 1 mole/
`(1 mole)/(6.023 x 10^2^3 particles)` = 15 moles

Answer 2

To determine the number of moles of given number of particles, we need a conversion factor to multiply or divide to the given value. For this case, we use the Avogadro's number. It represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles or vice versa. We do as follows:

9.03 x 10^24 chemical units ( 1 mol / 6.022x10^23 chemical units ) = 14.9950 moles

Therefore, 9.03 x 10^24 chemical units represent about 15 moles.