What is an orbital?
2 answers:
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Answer:
Using Newman projections, draw the most stable conformation for each of the following compounds.
(a) 3-methyl pentane, viewed along with the C2-C3 bond.
(b) 3,3-dimethyl hexane, viewed along with the C3-C4 bond.
Explanation:
(a) The structure of 3-methyl pentane is shown below:
In Newman projection, the most stable conformation is staggard conformation.
In staggard conformation, the torsional strain is very less compared to eclipsed conformation.
(b)3,3-dimethyl hexane, viewed along with the C3-C4 bond.
Attached is the structure of 4 hydroxybutanal both in linear form and hemiacetal form
Answer:
-892.1 kJ/mol is the change in enthalpy for this reaction.
Explanation:
The heat required to melt the ice or heat of fusion =
Mass of an ice = 10.7 g
Amount of heat required to melt 10.7 grams of ice at 0 degrees Celsius: Q
, ΔH = ?
Heat released on combustion of 0.00400 moles of methane = Q'= -Q
Q' = -3,568.45 J = -3.568 kJ ( 1J = 0.001 kJ)
Change in enthalpy for this reaction = ΔH
-892.1 kJ/mol is the change in enthalpy for this reaction.