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S_A_V [24]
3 years ago
9

Analysis of a sample of a covalent compound showed that it contained 14.4% hydrogen and 85.6% carbon by mass. what is the empiri

cal formula for this compound?
Chemistry
1 answer:
katovenus [111]3 years ago
6 0
W(C)=0.865
A(C)=12
w(H)=0.144
A(H)=1

CxHy
M(CxHy)=12x+y

w(C)=xA(C)/(12x+y)
w(H)=yA(H)/(12x+y)

solve a system of two equations with two unknowns
12x/(12x+y)=0.856
y/(12x+y)=0.144

x=1
y=2

CH₂ is the empirical formula



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