Question

Approximately how many particles are in 2 moles?

1.8 x 1024
6.0 x 1023
2.4 x 1024
1.2 x 1024

Answer 1

Answer: 1.2 x 1024

Explanation: The number of particles in 2 moles is twice Avogadro's number, which results in approximately 1.2 × 1024 particles when rounded to three significant figures. When rounding this to three significant figures, it becomes 1.2 × 1024 particles.