The combustion of neopentane is described by the reaction: + H2O (unbalanced) AH = -3456 kJ/mol neopentane C5H12(s) + O2g) → CO219) If 100.0 milligrams of neopentane is burned in a bomb calorimeter to heat 100.0 mL of water at 25°C, what would be the final temperature of water in °C? The specific heat of water is 4.184 J/g°C, The MW of neopentane is 72.15 g/mol. Answer in four significant figures. Indicate the unit.

The combustion of neopentane is described by the reaction: + H2O (unbalanced) AH = -3456 kJ/mol neopentane C5H12(s) + O2g) → CO219) If 100.0 milligrams of neopentane is burned in a bomb calorimeter to heat 100.0 mL of water at 25°C, what would be the final temperature of water in °C? The specific heat of water is 4.184 J/g°C, The MW of neopentane is 72.15 g/mol. Answer in four significant figures. Indicate the unit.

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...

See similar textbooks

Similar questions

It is recommended that the average daily intake of glucose for humans is not to exceed 32.5 g of glucose (C6H12O6). The balanced chemical equation for the combustion of glucose is shown below. C6H12O6(aq) + 6 O₂(g) → 6 CO₂(g) + 6 H₂O (1) AH rxn= -1273.3 kJ/mol How much heat is released when 55.5 g of oxygen are combusted with glucose as shown in the reaction. above? Use the provided Periodic Table for any calculations involving elements. Report your answer to a single decimal place and report proper units with your answer.
Given the following thermochemical equations P4(s) + 6C12(g) 4PCI3(g) AH = -2439 kJ/mol 4PCI5(g) → P4(s) + 10CI 2(g) AH = 3438 kJ/mol find the AH for the reaction below, PCI5(g) → PC|3(g) + Cl2(g) O A) +249.8 kJ/mol O B) +999 kJ/mol O C) -999 kJ/mol O D) -249.8 kJ/mol
Natural gas burns in air to form carbon dioxide and water, releasing heat. CH4(g) + O2(g) → CO2(g) + H2O(g) ΔHorxn = -802.3 kJ What minimum mass of CH4 is required to heat 23g of water by 32oC? (Assume 100% heating efficiency.) Natural gas burns in air to form carbon dioxide and water, releasing heat. CH4(g) + O2(g) → CO2(g) + H2O(g) ΔHorxn = -802.3 kJ What minimum mass of CH4 is required to heat 23g of water by 32oC? (Assume 100% heating efficiency.) 62 g 22.5 g 7.80 mg 61 mg 118 mg
When a chemist burns ammonia according to the reaction below she finds that the reaction releases heat. (It is exothermic.) 4NH3(g) + 3O2(g) 2N2(g) + 6H2O(g) The enthalpy of the reaction DH = -1267 kJ. What is the enthalpy change (in kJ) when 3 grams of ammonia are burned?
1
Please send me the question in 20 minutes it's very urgent plz
Acetylene, C,H,, is used in welding torches. It releases a lot of energy when burned in oxygen. The combustion of one gram of acetylene releases 48.2 kJ. A 0.750-gram sample of acetylene is burned in a bomb calorimeter (heat capacity = 1.117kJ/°C) that contains 800.0 g of water. The final temperature of the bomb and water after combustion is 35.2°C. What is the initial temperature of the bomb and water?
For the combustion of methane(CH4) CH4 (g) + 2 O2 (g) --> CO2 (g) + 2H2O (g) Δ H = -882 kJ/mol If 250.0 g of CH4 is burned , what is the energy change? ( Answer in Kj. Answers in scientific notation are entered such as 1.234 e4 )
Please answer both the parts of question otherwise I'll downvote
A coffee cup calorimeter, including that water it contains, has a heat capacity of 425 J/K, and is initially at a temperature of 23.07 C. A 16.9 gram piece of nickel metal, initially at a temperature of 4.0°C is placed in the calorimeter. The final temperature of the calorimeter and the metal is 22.74°C. What is the specific heat of nickel metal (in Jg1 K-1)? 27 O0.44 1.4 O 25 O 145
When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it reacts completely to displace copper. The temperature of the solution rises from 20.0˚C to 30.4˚C. Assume the coffee cup itself gains no heat and that the solution has the same density (1.00 g/mL) and specific heat (4.184 J/g˚C) as pure water. (a) How much heat does the solution gain during this reaction? (in J)
(Incorrect) Consider the following reaction: 2 PbS (s) + 3 02 (g) → 2 PbO (s) +2 SO₂ (g) AHxn=-827.4 kJ What mass of PbS has reacted if 765 kJ of heat is produced? You answered: 221. The correct answer is: 442.0g A