Question

1. In electroplating a silver spoon,how many moles of electrons are required to deposit 10.8g of silver (Ag=108)

Answer 1

Answer:

3.37232 × 10^24

Explanation:

NO. of electrons in 0ne mole of silver = 56 × avogadro contant

56 × 6.022 × 10^23

here no. of moles of silver = given mass ÷ molar mass

10.8 ÷ 108 = 0.1 moles

so no. of electrons in 0.1 moles if Ag = 0.1 × 56 × 6.022 × 10^23

3.37232 × 10^24