Calculate the mass (in ng)of 2.33 × 10²⁰atoms of oxygen. A)6.19 × 10⁶ ng B)1.62 × 10⁷ ng C)2.25 × 10³ ng D)3.73 × 10⁶ ng E)4.69 × 10⁷ ng

Question

Quizplus · Accepted Answer

The mass of one mole of oxygen atoms is approximately 16 grams. Using Avogadro's number (6.022 × 10^23 atoms/mole), the mass of 2.33 × 10^20 atoms is calculated as follows: (2.33 × 10^20 atoms) / (6.022 × 10^23 atoms/mole) × 16 g/mole = 6.19 × 10^-4 g = 6.19 × 10^5 ng.

Calculate the Mass (In Ng)of 2