(d) A compound contains carbon and hydrogen only. On combustion, 0.150 g of compound gives 0.488 g CO2 and 0.150 g H20. The molar mass is found to
52.09.
0) What is the mass percentage of each element in the compound?
(i) Calculate the empirical formula of the compound.
(iii) Calculate the molecular formula of the compound.
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5 structural isomers

the isomers are:

n-exane :   ch3ch2ch2ch2ch2ch3

2-methylpentane :   ch3ch(ch3)ch2ch2ch3

3-methylpentane :   ch3ch2ch(ch3)ch2ch3

2,3-dimethylbutane :   (ch3)2chch(ch3)2

2,2-dimethylbutane :   (ch3)3cch2ch3

hcl + naoh → h2o + nacl

explanation:

hcl + naoh → h2o + nacl   is the reaction that is correctly balanced.

however, pcl3 + h2 → ph3 +3hcl, 2ca+ 3cl2 → cacl3, and c5h12 + 5o2 → 5co2 + 6h2o are not correctly balanced.