ChemistryChemical combinationJAMB
Find the mass of 3.01 × 10²³ atoms of sodium. (Na = 23; Avogadro's constant = 6.02 × 10²³ mol⁻¹)
Show answer
Answer: A. 11.5 g
3.01 × 10²³ atoms = 0.5 mol; 0.5 × 23 = 11.5 g.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.