7. You have 1.5x1024 atoms of iron. How many moles do you have?

2.49moles

Explanation:

To calculate the number of moles (n), of iron (Fe) in 1.5 × 10²⁴ atoms, we divide the number of atoms by Avogadro's number (6.02 × 10²³).

That is, n = N ÷ nA

Where;

n = number of moles (mol)

N = number of atoms

nA = Avogadro's constant

n = 1.5 × 10²⁴ ÷ 6.02 × 10²³

n = 1.5/6.02 × 10(²⁴ - ²³)

n = 0.249 × 10¹

n = 2.49moles

i believe it is 40–40–20%

explanation:

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'