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Author Question: Methanol (CH3OH) burns according to the equation 2CH3OH(l) + 3O2(g) 2CO2(g) + 4H2O(l), Hrxn = ... (Read 52 times)

stananza

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on: Nov 5, 2023

Question 1

If 10.6 moles of water at 35°C absorbs 12.30 kJ, what is the final temperature of the water? The specific heat of water is 4.184 J/g·°C.
◦ 15°C
◦ 20°C
◦ 35°C
◦ 50.°C
◦ 312°C

Question 2

Methanol (CH3OH) burns according to the equation
         2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l), ΔH°rxn = –1454 kJ/mol.
How much heat, in kilojoules, is given off when 75.0 g of methanol is burned?
◦ 727 kJ
◦ 3.22 × 103 kJ
◦ 1.45 × 103 kJ
◦ 1.70 × 103 kJ
◦ 3.41 × 103 kJ
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by stananza on Nov 5, 2023

dsd1212

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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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stananza

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Reply 2 on: Nov 5, 2023
Gracias!

Animal_Goddess

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Reply 3 on: Yesterday
Excellent

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