A hydrocarbon containing 88.9% carbon has the empirical formula [H = 1 C = 12]
A
CH
B
CH2
C
C2H3
D
C2H5
Verified Correct Answer: B.
Chemical Principles & Mechanism
element : C | H
Atomic Mass : 12.011 | 1.008
mass in 100 g of compound 88.9 | 11.100
we calculate the number of moles by dividing the mass by the atomic mass
# moles in 100 g : 7.40155 | 11.01190
molar ratio 7.40155 : 11.01190
smallest No : 7.4015
divide by the smallest No. : 1.000 : 1.488
empirical formula is CH\(_2\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #37302)