One million argon atoms is __________ mol (rounded to two significant figures)of argon atoms. A)3.0 B)1.7 × 10^-18 C)6.0 × 10²³ D)1.0 × 10^-⁶ E)1.0 × 10⁺⁶

Question

Quizplus · Accepted Answer

One mole of any substance contains Avogadro's number of entities, which is approximately 6.022 × 10^23. Therefore, one million (1 × 10^6) argon atoms is 1 × 10^6 / 6.022 × 10^23 = 1.7 × 10^-18 mol.

One Million Argon Atoms Is __________ Mol (Rounded to Two