There are 3 different possible structures (known as isomers) for a dibromoethene molecule, C2H2Br2. One of them has no net dipol
e moment, but the other two do. Draw a structure for each isomer. Include H atoms.
1 answer:
Explanation:
Compounds having same molecular formula but different structural and spatial arrangement are isomers.
Three isomers are possible for dibromomethene.
In one structure (IUPAC name: 1,1-dibromomethene), both the bromine atoms are attached to one carbon atom.
In another two structures (Cis and trans), two bromine atoms are attached to two different carbon atoms.
In Cis 1,2-dibromomethene, two bromine atoms are present on the same side.
Whereas in Cis 1,2-dibromomethene, two bromine atoms are present on the opposite side and hence, does not have net dipole moment.
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Answer: Enthalpy for the dissolution reaction of one mole of aluminum nitrate is -158 kJ/mol.
Explanation:
It is known that the density of water is 1 g/mL. So, mass of water will be calculated as follows.
Mass = volume × density
=
= 103.2 g
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=
= 2372.5 J
As, 1 J = . So, 2372.5 J will be converted into kJ as follows.
= 2.37 kJ
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= 0.015
Therefore, enthalpy for the dissolution will be calculated as follows.
= -158 kJ/mol
Thus, we can conclude that enthalpy for the dissolution reaction of one mole of aluminum nitrate is -158 kJ/mol.