1. how many atoms are there in 2.8 moles of carbon? you must show your work to receive credit.

2. how many moles are 1.50 x 10^23 molecules of naoh? must show work to receive credit.

you! : )

The answer to your question is

1.-  1.686 x 10²⁴ atoms

2.- 0.25 moles

Explanation:

1.-

              1 mol 6.023 x 10²³ atoms

             2.8 moles  x

              x = (2.8 x 6.023 x 10²³) / 1

              x = 1.686 x 10²⁴ atoms

2.-           1 mol 6.023 x 10 ²³ molecules

               x moles  1.50 x 10²³ molecules

              x = (1.50 x 10²³ x 1) / 6.023 x 10²³

              x = 0.25 moles