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thalpies of formation òf Appendix C, calculate the standard enthalpy of formation of (8). CU2(8), and H2O(1) from acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): Ca(OH)2(s) + C2H2(g) CaC2(s) + 2 H20(1) AH° = -127.2 kJ 5.77 Gasoline is composed primarily of hydrocarbons, includ- ing many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4- trìmethylpentane, which has the following structural formula: olan CH3 CH3 CH3 НС—СН—CH-CH—СH3 The complete combustion of one mole of this com- pound to CO2(g) and H20(g) leads to AH° = -5064.9 kJ. (a) Write a balanced equation for the combustion of 1 mol of C3H18(1). (b) By using the information in this problem and data in Table 5.3, calculate AH for 2,3,4-trimethylpentane. 5.78 Diethyl ether, C4H100(1), a flammable compound that was once used as a surgical anesthetic, has the structure НАС — СН, —О—СH—СHз The complete combustion of 1 mol of C4H100(1) to CO2(8- nd H,0(1) vields AH° Write a halanced

thalpies of formation òf Appendix C, calculate the standard enthalpy of formation of (8). CU2(8), and H2O(1) from acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): Ca(OH)2(s) + C2H2(g) CaC2(s) + 2 H20(1) AH° = -127.2 kJ 5.77 Gasoline is composed primarily of hydrocarbons, includ- ing many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4- trìmethylpentane, which has the following structural formula: olan CH3 CH3 CH3 НС—СН—CH-CH—СH3 The complete combustion of one mole of this com- pound to CO2(g) and H20(g) leads to AH° = -5064.9 kJ. (a) Write a balanced equation for the combustion of 1 mol of C3H18(1). (b) By using the information in this problem and data in Table 5.3, calculate AH for 2,3,4-trimethylpentane. 5.78 Diethyl ether, C4H100(1), a flammable compound that was once used as a surgical anesthetic, has the structure НАС — СН, —О—СH—СHз The complete combustion of 1 mol of C4H100(1) to CO2(8- nd H,0(1) vields AH° Write a halanced

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thalpies of formation òf Appendix C, calculate the standard enthalpy of formation of (8). CU2(8), and H2O(1) from acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): Ca(OH)2(s) + C2H2(g) CaC2(s) + 2 H20(1) AH° = -127.2 kJ 5.77 Gasoline is composed primarily of hydrocarbons, includ- ing many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4- trìmethylpentane, which has the following structural formula: olan CH3 CH3 CH3 НС—СН—CH-CH—СH3 The complete combustion of one mole of this com- pound to CO2(g) and H20(g) leads to AH° = -5064.9 kJ. (a) Write a balanced equation for the combustion of 1 mol of C3H18(1). (b) By using the information in this problem and data in Table 5.3, calculate AH for 2,3,4-trimethylpentane. 5.78 Diethyl ether, C4H100(1), a flammable compound that was once used as a surgical anesthetic, has the structure НАС — СН, —О—СH—СHз The complete combustion of 1 mol of C4H100(1) to CO2(8- nd H,0(1) vields AH° Write a halanced
Transcribed Image Text:thalpies of formation òf Appendix C, calculate the standard enthalpy of formation of (8). CU2(8), and H2O(1) from acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): Ca(OH)2(s) + C2H2(g) CaC2(s) + 2 H20(1) AH° = -127.2 kJ 5.77 Gasoline is composed primarily of hydrocarbons, includ- ing many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4- trìmethylpentane, which has the following structural formula: olan CH3 CH3 CH3 НС—СН—CH-CH—СH3 The complete combustion of one mole of this com- pound to CO2(g) and H20(g) leads to AH° = -5064.9 kJ. (a) Write a balanced equation for the combustion of 1 mol of C3H18(1). (b) By using the information in this problem and data in Table 5.3, calculate AH for 2,3,4-trimethylpentane. 5.78 Diethyl ether, C4H100(1), a flammable compound that was once used as a surgical anesthetic, has the structure НАС — СН, —О—СH—СHз The complete combustion of 1 mol of C4H100(1) to CO2(8- nd H,0(1) vields AH° Write a halanced
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