Question

Cuantas moleculas de HCl hay en 0.25 moles

Answer 1

Mm HCl = 36.45 g/mol

moles = masa / Mm

moles = 25.0 g / 36.45 g/mol

moles = 0.685

1 mol ----------- 6.022 x 10²³ moléculas
0.685 mol ---------- x

x = 4.125 x 10²³ moleculas