How many grams of ZnSO₄ are required to produce 6.5 g of Zn with excess H₂SO₄? (Molar masses: ZnSO₄ = 161.5 g/mol, Zn =
Moles of Zn = 6.5/65 = 0.1 mol. 1 mol Zn from 1 mol ZnSO₄; mass = 0.1 × 161.5 = 16.15 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Reactions in Solutions and Mass Percentage and Numericals
