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Q1. (a) What is the mass, in grams, of 9.03x1023 molecules of methanol, CH;OH? (CH;OH: 32.04 g/mol) (b) How many kilojoules of heat are absorbed when 24.0 g CH(g) is produced at constant pressure? (CH:: 16.04 g/mol) 2CH;OH(g) → 2CH4(g) + O2(g) AH=+252.8 kJ (c) Methanol, CH;OH, boils at 65°C. What is the enthalpy change during the process in which 16.0 g of liquid methanol at 25 °C is heated to gaseous methanol at 65 °C? (Specific heat of liquid CH;OH: 2.53 J/g°C; AHan( CH;OH): 35.2 kJ/mol; CH;OH: 32.04 g/mol)

Q1. (a) What is the mass, in grams, of 9.03x1023 molecules of methanol, CH;OH? (CH;OH: 32.04 g/mol) (b) How many kilojoules of heat are absorbed when 24.0 g CH(g) is produced at constant pressure? (CH:: 16.04 g/mol) 2CH;OH(g) → 2CH4(g) + O2(g) AH=+252.8 kJ (c) Methanol, CH;OH, boils at 65°C. What is the enthalpy change during the process in which 16.0 g of liquid methanol at 25 °C is heated to gaseous methanol at 65 °C? (Specific heat of liquid CH;OH: 2.53 J/g°C; AHan( CH;OH): 35.2 kJ/mol; CH;OH: 32.04 g/mol)

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
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Q1. (a) What is the mass, in grams, of 9.03x1023 molecules of methanol, CH;OH? (CH;OH: 32.04 g/mol) (b) How many kilojoules of heat are absorbed when 24.0 g CH:(g) is produced at constant pressure? (CH;: 16.04 g/mol) 2CH;OH(g) → 2CH4(g) + O2(g) AH=+252.8 kJ (c) Methanol, CH;OH, boils at 65°C. What is the enthalpy change during the process in which 16.0 g of liquid methanol at 25 °C is heated to gaseous methanol at 65 °C? (Specific heat of liquid CH;OH: 2.53 J/g°C; AHun(CH;OH): 35.2 kJ/mol; CH;OH: 32.04 g/mol)
Transcribed Image Text:Q1. (a) What is the mass, in grams, of 9.03x1023 molecules of methanol, CH;OH? (CH;OH: 32.04 g/mol) (b) How many kilojoules of heat are absorbed when 24.0 g CH:(g) is produced at constant pressure? (CH;: 16.04 g/mol) 2CH;OH(g) → 2CH4(g) + O2(g) AH=+252.8 kJ (c) Methanol, CH;OH, boils at 65°C. What is the enthalpy change during the process in which 16.0 g of liquid methanol at 25 °C is heated to gaseous methanol at 65 °C? (Specific heat of liquid CH;OH: 2.53 J/g°C; AHun(CH;OH): 35.2 kJ/mol; CH;OH: 32.04 g/mol)
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