How many Cl atoms are there in 2.5 moles of Cl2?A) 3  1024B) 30C) 1.5  1024D) 5E) 3  1023

To answer this question, we need to understand the concept of a mole in chemistry. A mole is a unit of measurement used in chemistry to express amounts of a chemical substance.

1 mole of any substance contains Avogadro's number of particles, which is approximately 6.022 x 10^23 particles.

In Cl2, there are 2 Cl atoms. So, 1 mole of Cl2 contains 2 moles of Cl atoms.

Given that we have 2.5 moles of Cl2, the number of moles of Cl atoms would be 2 * 2.5 = 5 moles.

Since 1 mole contains 6.022 x 10^23 particles, 5 moles would contain 5 * 6.022 x 10^23 = 3.011 x 10^24 Cl atoms.

So, the answer is not listed in the options provided. There seems to be a mistake in the question or the options provided.