Question

How many moles are in 2.11 x 1014 molecules of LiBr?

Answer 1

Answer: There are
`12.71 * 10^(-9)` moles present in
`2.11 * 10^(14)` molecules of LiBr.

Step-by-step explanation:

According to the mole concept, there are
`6.022 * 10^(23)` molecules present in 1 mole of a substance.

Hence, moles in
`2.11 * 10^(14)` molecules of LiBr are calculated as follows.

`Moles = (2.11 * 10^(14))/(6.022 * 10^(23))\\= 12.71 * 10^(-9)`

Thus, we can conclude that there are
`12.71 * 10^(-9)` moles present in
`2.11 * 10^(14)` molecules of LiBr.