CBSE Class 11-science Answered
calculate the number of electrons present in 1.6g of CH4(methane).
Asked by RIZWAN YASIN | 24 May, 2013, 08:12: PM
Expert Answer
MW of methane = 16 g/mole
So, no of moles of methane in 1.6 g = 1.6 /16 g/mole = 0.1
Since, in 1 mole methane there are 6.022 x 1023 molecules of methane,
so, in 0.1 mole there will be 0.1 x 6.022 x 1023 molecules of methane
In 1 methane molecule there are 10 electrons (6 + 4)
total electrons in 0.1 mole or 1.6 g = 10 x 0.1 x 6.022 x 1023
= 6.022 x 1023
Answered by | 24 May, 2013, 09:22: PM
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