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Express the mass to three significant digits with the appropriate units. 10.4 g Submit Previous Answers v Correct For a measured enthalpy change of 82.2 kJ, the number of moles of methane gas formed is found by performing the following calculation: 2 mol CH, 82.2 kJ × = 0.650 mol CH, 252.8 kJ The ratio uses the coefficient taken from the balanced chemical equation. Then, moles are converted to mass by using the corresponding molar mass of methane (16.0- Part D How many kilojoules of heat are released when 38.2 g of CH4(g) reacts completely with O2(g) to form CH3OH(g) at constant pressure? Express heat to three significant digits with the appropriate units. Value Units Submit Request Answer

Express the mass to three significant digits with the appropriate units. 10.4 g Submit Previous Answers v Correct For a measured enthalpy change of 82.2 kJ, the number of moles of methane gas formed is found by performing the following calculation: 2 mol CH, 82.2 kJ × = 0.650 mol CH, 252.8 kJ The ratio uses the coefficient taken from the balanced chemical equation. Then, moles are converted to mass by using the corresponding molar mass of methane (16.0- Part D How many kilojoules of heat are released when 38.2 g of CH4(g) reacts completely with O2(g) to form CH3OH(g) at constant pressure? Express heat to three significant digits with the appropriate units. Value Units Submit Request Answer

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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For a given sample of CH3OH, the enthalpy change during the reaction is 82.2 kJ. What mass of methane gas is produced? Express the mass to three significant digits with the appropriate units. 10.4 g Submit Previous Answers Correct For a measured enthalpy change of 82.2 kJ , the number of moles of methane gas formed is found by performing the following calculation: 82.2 kJ × 2 mol CH, 0.650 mol CH4 252.8 kJ The ratio uses the coefficient taken from the balanced chemical equation. Then, moles are converted to mass by using the corresponding molar mass of methane (16.0- Part D How many kilojoules of heat are released when 38.2 g of CH4(g) reacts completely with O2 (g) to form CH3OH(g) at constant pressure? Express heat to three significant digits with the appropriate units. Value Units Submit Request Answer Provide Feedback - -- PrtScn Home End PgUp
Transcribed Image Text:For a given sample of CH3OH, the enthalpy change during the reaction is 82.2 kJ. What mass of methane gas is produced? Express the mass to three significant digits with the appropriate units. 10.4 g Submit Previous Answers Correct For a measured enthalpy change of 82.2 kJ , the number of moles of methane gas formed is found by performing the following calculation: 82.2 kJ × 2 mol CH, 0.650 mol CH4 252.8 kJ The ratio uses the coefficient taken from the balanced chemical equation. Then, moles are converted to mass by using the corresponding molar mass of methane (16.0- Part D How many kilojoules of heat are released when 38.2 g of CH4(g) reacts completely with O2 (g) to form CH3OH(g) at constant pressure? Express heat to three significant digits with the appropriate units. Value Units Submit Request Answer Provide Feedback - -- PrtScn Home End PgUp
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