The mass of half mole of electron is about? (given mass of electron = 9.109 × 10^ - 28) plss solve this and the answer should be 0.274mg

The mass of half mole of electron is about? (given mass of electron =

1.	The mass of half mole of electron is about? (given mass of electron = 9.109 × 10^ - 28) plss solve this and the answer should be 0.274mg
Answer» BONJOUR! To FIND:- Mass of half mole of electron. 1 mole of electron CONTAINS 6.022 × 10²³ electrons. So, 1/2 mole of electron will contain 3.011 × 10²³ electrons. Mass of ONE electron is = 9.109 × 10^-28 g So, mass of 3.011 × 10-²³ electrons will be $= 3.011 \times {10}^{ 23} \times 9.101 \times {10}^{ - 28} \: g \\ \\ = 27.4 \times {10}^{ - 5} \: g \\ \\ = 27.4 \times {10}^{ - 5} \times {10}^{3} \: mg \\ \\ = 27.4 \times {10}^{ - 2} \: mg \\ \\ = 0.274 \: mg$ Therefore mass of 1/2 mole of electron is = 0.274 mg Hope this helps...:)