Question

Determine the number of particles in 1 mole of dust mites.
a.1.204 x 1024 particles
b.1.51 x 102 particles
c.3.01 x 1032 particles
d.6.022 x 1023 particles

Answer 1

D is the answer. It is the avagadro's constant

Answer 2

The answer is: d. 6.022 x 1023 particles.

n = 1.00 mol; amount of dust mites.

Na = 6.022·10²³ 1/mol.

Na is Avogadro number or Avogadro constant (the number of particles, in this example dust mites, that are contained in the amount of substance given by one mole).

N = n· Na.

N = 1.00 mol · 6.02·10²³ 1/mol.

N = 6.022·10²³; number of dust mites.