How many atoms of gold (Au) are present in a sample of 2.5 mol Au?

1.5 * 10^24 atoms Au

1.5 * 10^23 atoms Au

4.2 * 10^24 atoms Au

4.2 * 10^23 atoms Au

Question

Mateo Gill

13 February, 19:27

+1

Answers (1)

Know the Answer?

Kallie Hancock · Answer 1

1 mole of any element=6.022*10²³ atoms

2.5 moles of Au=2.5 (6.022*10²³ atoms) = 1.5*10²⁴ atoms

answer: 1.5 x 10²⁴ atoms Au.

How many atoms of gold (Au) are present in a sample of 2.5 mol Au?1.5 * 10^24 atoms Au1.5 * 10^23 atoms Au4.2 * 10^24 atoms Au4.2 * 10^23 atoms Au