Calculate the percentage, by mass, of carbon in cyclohexane. Give your answer to two significant figures.
formua of cyclohexane C6H12
molar ratio is 1:2 (divide 6 and 12 by 6 )
to get mass ratio multiply by molar mass (1 x 12 and 2x1)
12:2
convert to percentage (12/14 = 6/7 = 85.7% carbon by mass )
TF
Related Chemistry A Level answers
All answers ▸Cracking of the unbranched compound E, C6H14, produced the saturated compound F and an unsaturated compound G (Mr = 42). Identify these compounds and write an equation for the reaction.
Describe, in three steps, how you would synthesise phenylethylamine (C6H5CH2CH2NH2) from methylbenzene, giving reagents and conditions for each step. For each step, state the type of reaction that occurs.
How do acid buffer solutions work?
Why does a salt not conduct electricity in its solid state?