Answer : The density of a sample is, 34.2 g/L
Explanation :
Density : It is defined as the mass contained per unit volume.
Formula used for density :

Given :
Mass of a sample = 7.412 grams
Volume =0.217 L
Now put all the given values in the above formula, we get the density of a sample.

Therefore, the density of a sample is, 34.2 g/L
Answer: -
The first compound is 3-Methylheptane.
The second compounds is 4-ethyl-3-methyl-4-propylheptane
The 3rd one is propanol.
The 4th one is 2-propanol.
The 5th one is methoxyethane
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