Determine the mass of silver formed when an excess of glucose is reacted with 200 g of a 17% silver nitrate solution in the presence of ammonia.
- 10.8 g
- 21.6 g
- 43.2 g
- 5.4 g
📝 Batafsil tushuntirish
Mass AgNO₃ = 200 × 0.17 = 34 g.Moles AgNO₃ = 34 / 170 = 0.2 mol.
In the Tollen's reagent reaction, 1 mole of AgNO₃ produces 1 mole of Ag.
Moles Ag = 0.2 mol.
Mass Ag = 0.2 × 108 = 21.6 g.