Question

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.

Thank you! :)

Answer 1

1.- 1.686 x 10²⁴ atoms

2.- 0.25 moles

Step-by-step explanation:

Answer 2

The answer to your question is

1.- 1.686 x 10²⁴ atoms

2.- 0.25 moles

Step-by-step 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