Answer:
Mass = 2.59 g
Explanation:
Given data:
Mass of AgS = 3.45 g
Mass of silver = ?
Solution:
Number of moles of AgS:
Number of moles = mass/molar mass
Number of moles = 3.45 g/ 139.93 g/mol
Number of moles = 0.024 mol
1 mole of AgS contain 1 mole of Ag.
0.024 mol contain 0.024 mol of Ag.
Mass of silver:
Mass = number of moles × molar mass
Mass = 0.024 mol × 107.86 g/mol
Mass = 2.59 g
