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Author Question: Consider the following standard heats of formation: P4O10(s) = -3110 kJ/mol H2O(l) = ... (Read 56 times)

Sufayan.ah

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on: Mar 21, 2021

Question 1

Consider the following reaction:

              2Al(s) + 3Cl2(g) → 2AlCl3(s);    ΔH = -1390.81 kJ

a) Is the reaction exothermic or endothermic?

b) How much heat is produced/required when 10.0 g AlCl3 forms.

c) How many grams of Al are required to absorb/evolve 1.00 kJ of energy?



Question 2

Consider the following standard heats of formation:

              P4O10(s) = -3110 kJ/mol

              H2O(l) = -286 kJ/mol

              H3PO4(s) = -1279 kJ/mol

Calculate the change in enthalpy for the following process:

              P4O10(s) + 6H2O(l) → 4H3PO4(s)

Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by Sufayan.ah on Mar 21, 2021

bobsmith

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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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Sufayan.ah

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Reply 2 on: Mar 21, 2021
Wow, this really help

ttt030911

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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