How much carbon can be obtained from 65.3 g of #Ca(C_2H_3O_2)_2#?

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Answer 1 · 2016-07-29T22:47:58

Approximately #19.8# grams

Approximate the molar mass of the constituent elements as follows:

#Ca: 40# g/mol

#C: 12# g/mol

#H: 1# g/mol

#O: 16# g/mol

Then the mass of #Ca(C_2H_3O_2)_2# is:

#40+2((2*12)+(3*1)+2*(16))#

#=40+2(24+3+32)#

#=40+2*59#

#=158# g/mol

of which #4*12 = 48# g/mol is carbon.

So in #65.3"g"# of #Ca(C_2H_3O_2)_2#, the mass of carbon is:

#65.3*48/158 ~~ 19.8"g"#