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Author Question: Determine the heat given off to the surroundings when 9.0 g of aluminum reacts according to the ... (Read 18 times)

mustachegiraffe

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on: Nov 5, 2023

Question 1

Concerning the reaction
C(graphite) + O2(g) → CO2(g)
ΔH° = –393 kJ/mol
how many grams of C(graphite) must be burned to release 275 kJ of heat?

◦ 0.70 g
◦ 8.40 g
◦ 12.0 g
◦ 17.1 g
◦ 22.3 g

Question 2

Determine the heat given off to the surroundings when 9.0 g of aluminum reacts according to the equation 2Al + Fe2O3→ Al2O3 + 2Fe, ΔH°rxn= –849 kJ/mol.
◦ 1.4 × 102 kJ
◦ 2.8 × 102 kJ
◦ 5.6 × 102 kJ
◦ 2.5 × 103 kJ
◦ 7.6 × 103 kJ
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by mustachegiraffe on Nov 5, 2023

ryanb

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Reply #1 on: Nov 5, 2023
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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mustachegiraffe

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Reply 2 on: Nov 5, 2023
YES! Correct, THANKS for helping me on my review

mochi09

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Reply 3 on: Yesterday
Excellent

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