How many atoms are in 55.2 grams Li?

Answer 1

Well, honey, if we're talking about lithium (Li) and you've got 55.2 grams of it, you're looking at approximately 7.4 x 10^23 atoms. That's a whole lotta Li atoms in your hands. Hope you've got a plan for all that atomic power!

Answer 2

The atomic weight of Li is 6.941 g/mol

The mass of the sample is 55.2 g

This means that:

55.2/6.941=7.95 moles (rounded number)

Multiplying this with Avogadro's number (6.022*1023)

7.95*6.022*1023=4.79*1024 atoms.

There you have your answer.

Answer 3

To find the number of atoms in 55.2 grams of lithium (Li), you need to first determine the molar mass of lithium, which is approximately 6.94 g/mol. Then, use this value to convert the grams of lithium to moles. Finally, use Avogadro's number (6.022 x 10^23 atoms/mol) to calculate the number of atoms in 55.2 grams of lithium.