CBSE Class 11-science Answered
What mass of carbon is present in 147.2 g of potassium ferrocyanide ?
Asked by Ujjwal Kumar | 05 Oct, 2010, 08:19: PM
Expert Answer
Potassium ferrocyanide is K4[Fe(CN)6]
Moles of potassium ferro cynide=weight of ferro cynide/molecular weight of potassium ferro cynide
=147.2/368
=147.2/368
=2.5 moles of potassium ferro cynide
and, we can see one potassium ferro cynide have 6 carbon.
so, number of moles of carbon=6*2.5=15 moles
so, number of moles of carbon=6*2.5=15 moles
Hence,
15=weight of carbon/Molecular weight of carbon
15=wt./12
wt.=12*15
wt of carbon=180 g.
Answered by | 05 Oct, 2010, 11:29: PM
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