Calculate the standard enthalpy of reaction, AH, of each of the given acid-base neutralization reactions involving the strong base KOH. The standard enthalpy of formation data are provided. Compound or Ion Standard Enthalpy of Formation (kJ/mol) KOH(ag) -482.4 H,O0) HCIO, (aq) KCIO, (aq) HBr(ag) -285.8 -98.4 -349.5 -121.0 KBr(ag) NH (aq) -372.1 -132.5 NH, (aq) K*(aq) -80.3 -251.2

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Calculate the standard enthalpy of reaction, AHin, of each of the given acid-base neutralization reactions involving the
strong base KOH. The standard enthalpy of formation data are provided.
Compound or Ion Standard Enthalpy of Formation (kJ/mol)
KOH(aq)
-482.4
H,O()
HCIO, (aq)
-285.8
-98.4
KCIO, (aq)
-349,5
HBr(aq)
-121.0
KBr(aq)
NH (aq)
NH, (aq)
K* (aq)
-372.1
-132.5
-80.3
-251.2
HCIO, (aq) + KOH(aq)
– KCIO, (aq) +H,O(1)
AHn =
kJ/mol
HBraq) + кон(aд) — КBr(aq)+ Н, о)
AHin =
kJ/mol
NH (aq) + KOН аq) — NH, (aq) + K* (аq) + Н, О)
kJ/mol
AHxn =
Based on the AHan values, what is the most likely conclusion about the strength of the acids?
O HCIO, (aq) and HBr(aq) are weak acids, and NH (aq) is a strong acid.
O HCIO, (aq) and HBr(aq) are strong acids, and NH (aq) is a weak acid.
O HCIO, (aq), HBr(aq), and NH (aq) are all weak acids.
O HCIO, (aq). HBr(aq), and NH (aq) are all strong acids.
Transcribed Image Text:Calculate the standard enthalpy of reaction, AHin, of each of the given acid-base neutralization reactions involving the strong base KOH. The standard enthalpy of formation data are provided. Compound or Ion Standard Enthalpy of Formation (kJ/mol) KOH(aq) -482.4 H,O() HCIO, (aq) -285.8 -98.4 KCIO, (aq) -349,5 HBr(aq) -121.0 KBr(aq) NH (aq) NH, (aq) K* (aq) -372.1 -132.5 -80.3 -251.2 HCIO, (aq) + KOH(aq) – KCIO, (aq) +H,O(1) AHn = kJ/mol HBraq) + кон(aд) — КBr(aq)+ Н, о) AHin = kJ/mol NH (aq) + KOН аq) — NH, (aq) + K* (аq) + Н, О) kJ/mol AHxn = Based on the AHan values, what is the most likely conclusion about the strength of the acids? O HCIO, (aq) and HBr(aq) are weak acids, and NH (aq) is a strong acid. O HCIO, (aq) and HBr(aq) are strong acids, and NH (aq) is a weak acid. O HCIO, (aq), HBr(aq), and NH (aq) are all weak acids. O HCIO, (aq). HBr(aq), and NH (aq) are all strong acids.
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