Answer:
Mass of Cu react =31.14 g
Explanation:
Given data:
Mass of Cu react = ?
Mass of silver produced = 105.2 g
Solution:
Chemical equation:
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
Number of moles of Ag:
Number of moles = mass/ molar mass
Number of moles = 105.2 g/107.87 g/mol
Number of moles = 0.98 mol
Now we will compare the moles of Cu and silver from balance chemical equation:
Ag : Cu
2 : 1
0.98 : 1/2×0.98 = 0.49 mol
Mass of Cu:
Mass = number of moles × molar mass
Mass = 0.49 mol ×63.546 g/mol
Mass = 31.14 g
Answer:
Answer:
Mass of Cu react =31.14 g
Explanation:
Given data:
Mass of Cu react = ?
Mass of silver produced = 105.2 g
Solution:
Chemical equation:
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
Number of moles of Ag:
Number of moles = mass/ molar mass
Number of moles = 105.2 g/107.87 g/mol
Number of moles = 0.98 mol
Now we will compare the moles of Cu and silver from balance chemical equation:
Ag : Cu
2 : 1
0.98 : 1/2×0.98 = 0.49 mol
Mass of Cu:
Mass = number of moles × molar mass
Mass = 0.49 mol ×63.546 g/mol
Mass = 31.14 g
Explanation:
