Question Detail
Question
The mass in grams of 2.6 x 10²² chlorine atoms (35.5) is ---
Correct Answer
Option C is the correct answer.
Detailed Explanation
Moles = (2.6×10²²) / (6.022×10²³) = 0.0432 mol. Mass = 0.0432 mol × 35.5 g/mol = 1.53 g ≈ 1.5 g.
Hint
Convert atoms to moles using Avogadro's number, then to mass.