Constants | Periodic Table Styrene (C8H8), the precursor of polystyrene polymers, has a standard heat of...
Constants | Periodic Table Styrene (C8H8), the precursor of polystyrene polymers, has a standard heat of combustion of -4395 kJ/mol.(Figure 1) Part A Write a balanced equation for the combustion reaction. Express your answer as a chemical equation. Identify all of the phases in your answer. Phases (states) should be entered in lowercase. No credit lost. Try again. Previous AnswersRequest Answer Part B CalculateΔH∘f for styrene in kJ/mol. ΔH∘f[CO2(g)]=−393.5kJ/mol; ΔH∘f[H2O(l)]=−285.8kJ/mol Express your answer using three significant figures. ΔH∘f Δ H f ∘ = kJ/mol You have already submitted this answer. Enter a new answer. No credit lost. Try again. Previous AnswersRequest Answer
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Constants | Periodic Table Styrene (C8H8), the precursor of
polystyrene polymers, has a standard heat of...
Methanol (CH3OH) is used as a fuel in race cars. Part A Write a balanced equation...
Methanol (CH3OH) is used as a fuel in race cars. Part A Write a balanced equation for the combustion of liquid methanol in air, assuming H2O(g) as a product. Express your answer as a chemical equation. Identify all of the phases in your answer. SubmitPrevious AnswersRequest Answer Incorrect; Try Again; 5 attempts remaining Part B Calculate the standard enthalpy change for the combustion of 1 mol of liquid methanol, assuming H2O(g) as a product. Express your answer using four significant...
Part A Review Constants Periodic Table Decide whether or not each of the following metals dissolves...
Part A Review Constants Periodic Table Decide whether or not each of the following metals dissolves in 1 M HNO3 For those metals that do dissolve write a balanced redox reaction showing what happens when the metal dissolves 70 Express your answer as a chemical equation. Enter noreaction if there is no reaction. Identify all of the phases in your answer. AEC Zn(s) + NO, (aq) + 2H+ (aq) → Zn²+ (aq) + NO(g) +H,O(1) Your answer is not a...
Use the following beakers and solutions for the following questions: (Figure 1). Review Constants | Periodic...
Use the following beakers and solutions for the following questions: (Figure 1). Review Constants | Periodic Table If an insoluble salt forms, write the ionic equation. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. F AXO O O ? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Figure < 1 of 1 > Part If a reaction occurs, write the net ionic...
Review Constants Periodic Table Benzoic acid of mass 1.45 g is reacted with oxygon in a...
Review Constants Periodic Table Benzoic acid of mass 1.45 g is reacted with oxygon in a constant volume calorimeter to form H20(l) and CO2 (g) at 298 K The mass of the water in the inner bath is 1.70 x 10g The temperature of the calorimeter and its contents rises 2.82 K as a result of this reaction. Part A K Cp.m(H2O,1) - 75.3 J. mol Calculate the calorimeter constant. The standard enthalpy of combustion of benzoic acid at 298...
Review I Constants I Periodic Table Complete and balance each of the following equations. If no...
Review I Constants I Periodic Table Complete and balance each of the following equations. If no reaction occurs, write noreaction Part B K2SO4 (aq)+BaBr2 (aq) - Express your answer as a chemical equation. Enter noreaction if no precipitate is formed. ? ΑΣφ Use subscripts to represent the number of each type of atom or ion in a molecule. Review how to insert subscripts and more. No credit lost. Try again Submit Previous Answers Request Answer Dert
Hydrogen and methanol have both been proposed as alternatives to hydrocarbon fuels. Part A Write balanced...
Hydrogen and methanol have both been proposed as alternatives to hydrocarbon fuels. Part A Write balanced reactions for the complete combustion of hydrogen. Express your answer as a chemical equation. Identify all of the phases in your answer. 2H2 (8)+O2(g)+2H2O(1) Submit Previous Answers Request Answer * Incorrect; Try Again Part B Use standard enthalpies of formation to calculate the amount of heat released per kilogram of the fuel. Express your answer using four significant figures. DAXO amount of heat released...
Problem 4.20 Constants | Periodic Table Part A f 3.585 g of ethanol C2 H5 OH(1)...
Problem 4.20 Constants | Periodic Table Part A f 3.585 g of ethanol C2 H5 OH(1) is burned completely in a bomb calorimeter at 298.15 K, the heat produced is 106.0 kJ Calculate A Howmbin for ethanol at 298.15 K. Calculate A Hcom Express your answer to four significant figures and include the appropriate units A Hcombuntion-282.4 kJ mol combustiorn Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining
H2 reacts with the halogens (X2) according to the reaction: H2(g)+X2(g)⇌2HX(g) where X2 can be Cl...
H2 reacts with the halogens (X2) according to the reaction: H2(g)+X2(g)⇌2HX(g) where X2 can be Cl2, Br2, or I2. Reactant/Product ΔH∘f(kJ/mol) ΔS∘f(J/mol⋅K) H2(g) 0 130.7 Cl2(g) 0 223.1 HCl(g) -92.3 186.9 Br2(g) 30.9 245.5 HBr(g) -36.3 198.7 I2(g) 62.42 260.69 HI(g) 26.5 206.6 Part A Calculate ΔH∘ for the reaction between hydrogen and Cl2. Express your answer using four significant figures. ΔH∘ Δ H ∘ = kJ Previous AnswersRequest Answer Incorrect; Try Again; 11 attempts remaining Part B Calculate ΔS∘...
s I Periodic Table or the reactions of Part E acetic acid, HC,H302, with zinc Express...
s I Periodic Table or the reactions of Part E acetic acid, HC,H302, with zinc Express your answer as a balanced chemical equation. Identify all of the phases in your answer. ΑΣφ ? a h X h |Zn(s)+ 2HC,H,O,(aq)+Zn(CH,COO), (aq) H,(g) Previous Answers Request Answer Submit X Incorrect; Try Again; 4 attempts remaining Part F Net lonic equation: Express your answer as a balanced net ionic equation. Identify all of the phases in your answer. ΑΣΦΦ Request Answer Submit Provide...
CHomework Chapter 11 Problem 11.61 7 al 24 Review Constants Periodic Table Write a balanced chemical...
CHomework Chapter 11 Problem 11.61 7 al 24 Review Constants Periodic Table Write a balanced chemical equation for the complete combustion of each of the following: Part B cyclobutene Express your answer as a chemical equation. Identity all of the phases in your answer. 2C.H. (k)+110, (e) +800, (x) + 4H2O() Previous Answers Answer Requested Part C 2-methyl-2-hewane Express your answer as a chemical equation, Identity all of the phases in your answer. ΑΣΦ ? Submit Request Answer
Part A Review Constants Periodic Table Decide whether or not each of the following metals dissolves in 1 M HNO3 For those metals that do dissolve write a balanced redox reaction showing what happens when the metal dissolves 70 Express your answer as a chemical equation. Enter noreaction if there is no reaction. Identify all of the phases in your answer. AEC Zn(s) + NO, (aq) + 2H+ (aq) → Zn²+ (aq) + NO(g) +H,O(1) Your answer is not a...
Use the following beakers and solutions for the following questions: (Figure 1). Review Constants | Periodic Table If an insoluble salt forms, write the ionic equation. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. F AXO O O ? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Figure < 1 of 1 > Part If a reaction occurs, write the net ionic...
Review Constants Periodic Table Benzoic acid of mass 1.45 g is reacted with oxygon in a constant volume calorimeter to form H20(l) and CO2 (g) at 298 K The mass of the water in the inner bath is 1.70 x 10g The temperature of the calorimeter and its contents rises 2.82 K as a result of this reaction. Part A K Cp.m(H2O,1) - 75.3 J. mol Calculate the calorimeter constant. The standard enthalpy of combustion of benzoic acid at 298...
Review I Constants I Periodic Table Complete and balance each of the following equations. If no reaction occurs, write noreaction Part B K2SO4 (aq)+BaBr2 (aq) - Express your answer as a chemical equation. Enter noreaction if no precipitate is formed. ? ΑΣφ Use subscripts to represent the number of each type of atom or ion in a molecule. Review how to insert subscripts and more. No credit lost. Try again Submit Previous Answers Request Answer Dert
Hydrogen and methanol have both been proposed as alternatives to hydrocarbon fuels. Part A Write balanced reactions for the complete combustion of hydrogen. Express your answer as a chemical equation. Identify all of the phases in your answer. 2H2 (8)+O2(g)+2H2O(1) Submit Previous Answers Request Answer * Incorrect; Try Again Part B Use standard enthalpies of formation to calculate the amount of heat released per kilogram of the fuel. Express your answer using four significant figures. DAXO amount of heat released...
Problem 4.20 Constants | Periodic Table Part A f 3.585 g of ethanol C2 H5 OH(1) is burned completely in a bomb calorimeter at 298.15 K, the heat produced is 106.0 kJ Calculate A Howmbin for ethanol at 298.15 K. Calculate A Hcom Express your answer to four significant figures and include the appropriate units A Hcombuntion-282.4 kJ mol combustiorn Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining
s I Periodic Table or the reactions of Part E acetic acid, HC,H302, with zinc Express your answer as a balanced chemical equation. Identify all of the phases in your answer. ΑΣφ ? a h X h |Zn(s)+ 2HC,H,O,(aq)+Zn(CH,COO), (aq) H,(g) Previous Answers Request Answer Submit X Incorrect; Try Again; 4 attempts remaining Part F Net lonic equation: Express your answer as a balanced net ionic equation. Identify all of the phases in your answer. ΑΣΦΦ Request Answer Submit Provide...
CHomework Chapter 11 Problem 11.61 7 al 24 Review Constants Periodic Table Write a balanced chemical equation for the complete combustion of each of the following: Part B cyclobutene Express your answer as a chemical equation. Identity all of the phases in your answer. 2C.H. (k)+110, (e) +800, (x) + 4H2O() Previous Answers Answer Requested Part C 2-methyl-2-hewane Express your answer as a chemical equation, Identity all of the phases in your answer. ΑΣΦ ? Submit Request Answer
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