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Author Question: Which of the following does not have a standard enthalpy of formation equal to zero at 25C and 1.0 atm? (Read 83 times)

segrsyd

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on: Mar 21, 2021

Question 1

When 0.299 mol of a weak base (A–) is reacted with excess HCl, 6.91 kJ of energy is released as heat. What is ΔH for this reaction per mole of A– consumed?

◦ –43.3 kJ
◦ –75.3 kJ
◦ –23.1 kJ
◦ 43.3 kJ
◦ 23.1 kJ

Question 2

Which of the following does not have a standard enthalpy of formation equal to zero at 25°C and 1.0 atm?

◦ F2(g)
◦ Al(s)
◦ H2O(l)
◦ H2(g)
◦ They all have a standard enthalpy equal to zero.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by segrsyd on Mar 21, 2021

Ahnyah

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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segrsyd

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Reply 2 on: Mar 21, 2021
YES! Correct, THANKS for helping me on my review

alvinum

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Reply 3 on: Yesterday
Excellent

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