Question

cuantos atomos hay 0,240gr P

Answer 1

Mm P = 30.97 g/mol

1. calcular moles

n = m/Mm

n = 0.240 g / 30.97 g/mol

n = 0.00775 moles

2. calcular átomos

1 mol ----- 6.022 x 10²³ átomos

0.00775 mol ------ x

x = 4.667 x 10²¹ átomos