The enthalpy change of combustion per gram of N 2 H 4 and N 2 H 2 (CH 3 ) 2 has to be calculated. Concept Introduction: The standard enthalpy change of combustion of a compound is the enthalpy change which occurs when one gram of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state. Δ r H 0 = ΣnΔ f H 0 (products) - ΣnΔ f H 0 (reactants) The change in enthalpy, ΔH in kJ per mole of a given reactant for the reaction can be calculated as: Δ r H= enthalpy change number of moles ΔH = Δ r H×number of moles
The enthalpy change of combustion per gram of N 2 H 4 and N 2 H 2 (CH 3 ) 2 has to be calculated. Concept Introduction: The standard enthalpy change of combustion of a compound is the enthalpy change which occurs when one gram of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state. Δ r H 0 = ΣnΔ f H 0 (products) - ΣnΔ f H 0 (reactants) The change in enthalpy, ΔH in kJ per mole of a given reactant for the reaction can be calculated as: Δ r H= enthalpy change number of moles ΔH = Δ r H×number of moles
The enthalpy change of combustion per gram of N2H4 and N2H2(CH3)2 has to be calculated.
Concept Introduction:
The standard enthalpy change of combustion of a compound is the enthalpy change which occurs when one gram of the compound is burned completely in oxygen under standard conditions, and with everything in its standard state.
ΔrH0=ΣnΔfH0(products)-ΣnΔfH0(reactants)
The change in enthalpy, ΔH in kJ per mole of a given reactant for the reaction can be calculated as:
ΔrH=enthalpy changenumber of moles
ΔH=ΔrH×number of moles
Expert Solution & Answer
Answer to Problem 86GQ
The enthalpy change of combustion per gram of N2H4 is -8.919 J/gK and the enthalpy change of combustion per gram of N2H2(CH3)2 is -32.93J/gK
3. Name this ether correctly.
H₁C
H3C
CH3
CH3
4. Show the best way to make the ether in #3 by a
Williamson Ether Synthesis.
Start from an alcohol or phenol.
5. Draw the structure of an example of a sulfide.
1. Which one(s) of these can be oxidized with CrO3 ?
(could be more than one)
a) triphenylmethanol
b) 2-pentanol
c) Ethyl alcohol
d)
CH3
2. Write in all the product(s) of this reaction. Label them
as "major" or "minor".
2-methyl-2-hexanol
H2SO4, heat
3) Determine if the pairs are constitutional isomers, enantiomers, diastereomers, or mesocompounds.
(4 points)
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