How many gold atoms are contained in 3.75 moles of gold? A) 1.23 × 10²⁴ gold atoms B) 2.26 × 10²⁴ gold atoms C) 2.26 × 10²³ gold atoms D) 9.03 × 10²⁵ gold atoms E) 6.50 × 10²⁵ gold atoms

Question

Quizplus · Accepted Answer

One mole of any substance contains Avogadro's number of particles (6.022 x 10^23). 
Therefore, 3.75 moles of gold would contain: 
3.75 moles x 6.022 x 10^23 atoms/mole = 2.26 x 10^24 gold atoms. 
Thus, choice B is the correct answer.

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