Diethyl ether. C4H10(l). a flammable compound that has long been used as a surgi

Question

Diethyl ether. C4H10(l). a flammable compound that has long been used as a surgical anesthetic, has the structure CH8 - CH2 - O - C H2 - CH3 The complete combustion of 1 mol of C4H10(l) to CO2(g) and H2O(l) yields DeltaH0 = -2723.7 kJ. Write a balanced equation for the combustion of 1 mol of C4H10O(l). Express your answer as a chemical equation. Identify all of the phases in your answer. Write a balanced equation for the formation of C4H10O(l) from its elements. Express your answer as a chemical equation. Identify all of the phases in your answer. A 100.0-g bar of gold is heated from 25 degreeC to 50 degree C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant. Based on the data, calculate the specific heat of Au(a). Express your answer to two significant figures and include the appropriate units. Suppose that the same amount of heat is added to two 10.0-g blocks of metal, both initially at the same temperature. One block is gold metal and ore is iron metal. Which block will have the greater rise in temperature after the addition of the heat? What is the molar heat capacity of Au(s) ? Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

prob. 5.78

Part A:

C4H10O(l) +6O2 (g) ---- > 4CO2(g) +5H2O(g)

Part B:

8C(s) +10H2 (g) +O2(g) --- >2 C4H10O

Prob5.54:

Part A. 0.1288 J/g. K

Part C. 25.3735 J/mol.K

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