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10 Nov 2019

Propane, C3H8, is used in many instances to produce heat by burning: C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g) The standard enthalpy of reaction, ΔHrxn, is −2,044 kJ. ΔHrxn is a symbol or the heat of reaction. 1. How many grams of oxygen would be needed to produce 396.0 kJ of heat?

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Deanna Hettinger
Deanna HettingerLv2
11 Feb 2019

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Related questions

The reaction for the combustion of propane is

C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l) ΔH=−526.3kcal/mol

How much heat is released when 38.9 g of propane is burned?

______ kcal

Determine the mass of CO2 produced by burning enough of propaneto produce 1.00×102kJ of heat.

C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)

ΔrH∘=−2217kJmol−1

Express your answer using three significant figures.

Consider the combustion of propane gas,C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(l)Ho = -2,220 kJ/molPropane (just C3H8) is often used for gas grills. Anyone who has every filled or moved those tanks knows they can get pretty heavy.a) How many grams of propane are in 14 pounds of propane? Use the conversion 1 lb = 454 g. (Express your answers for the next three questions in scientific notation. For example use 2.3e-5 to indicate a number such as 2.3 x 10-5.) grams b) How many moles of propane are in 14 pounds of propane? moles c)How much heat can be obtained by burning 14 pounds of propane? (Remember to look at this from the viewpoint of the surroundings, since the question asks how much heat can be OBTAINED.) kJWhat is the enthalpy change for9 CO2(g) + 12 H2O(l) 3 C3H8(g) + 15 O2(g)(Hint: compare this equation to the combustion equation for propane. kJ

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