This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

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Kutokana na swali lililopita, fomula ya empiriki ya alkanol ilikuwa . Ikiwa fomula ya empiriki na fomula ya molekuli ni sawa, basi fomula ya molekuli pia ni . Hii inawakilisha butanol.
b) Muundo wa alkanol (butan-1-ol):
Sasa, kwa swali la 3:
a) Jina la mabadiliko ya entalpia : inawakilisha uundaji wa maji ya gesi () kutoka kwa elementi zake ( na ) katika hali zao za kawaida. Jina lake ni Standard enthalpy of formation of gaseous water (Entalpia Sanifu ya Uundaji wa Maji ya Gesi).
b) Kuamua thamani ya : Kutokana na Sheria ya Hess, mabadiliko ya jumla ya entalpia katika mzunguko ni sifuri. Tunaweza kuandika uhusiano kati ya entalpia hizi: Tunataka kupata , kwa hivyo tunapanga upya fomula: Tunapewa thamani zifuatazo:
Badilisha thamani hizi kwenye fomula:
Thamani ya ni:
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Kutokana na swali lililopita, fomula ya empiriki ya alkanol ilikuwa C_4H_10O. Ikiwa fomula ya empiriki na fomula ya molekuli ni sawa, basi fomula ya molekuli pia ni C_4H_10O.
This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.