Respuesta :

Answer:

Explanation:

Balanced Chemical Equation:

                            Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

Step 1: Find Limiting Reagent

Moles of Cu:

                   Mole = 3 g / 63.55 g/mol = 0.04721 mol

Moles of AgNO₃:

                   Moles = 3.85 g / 169.87 g/mol = 0.022664 mol

Also, Mole ratio of Cu : AgNO₃ is 1 : 2. Hence, 0.04721 mol of Cu will require 0.09442 mol of AgNO₃. This means, AgNO₃ is the limiting reagent.

Step 2: Calculate moles of Ag:

0.022664 mol of AgNO₃ will produce 0.022664 mol of Ag because both have same ratio in balanced chemical equation.

Step 3: Calculate mass of Ag:

                      Mass = 0.022664 mol × 107.87 g/mol = 2.4447 g