33) Coksider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is protom 53) A) 30 B) 32 C) 34 D) 64 E) 94 54) When 100.0 g of gasoline undergoes combustion, 9560 kJ of energy are released. Express the heat released in kilocalories. (Given: 4.184 J = 1 cal) 54) B A) 4.00 x 107 kcal B) 2.28 x 103 kcal C) 2.28 x 106 kcal D) 2.28 x 109 kcal E) 4.00 x 104 kcal

33) Coksider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is protom 53) A) 30 B) 32 C) 34 D) 64 E) 94 54) When 100.0 g of gasoline undergoes combustion, 9560 kJ of energy are released. Express the heat released in kilocalories. (Given: 4.184 J = 1 cal) 54) B A) 4.00 x 107 kcal B) 2.28 x 103 kcal C) 2.28 x 106 kcal D) 2.28 x 109 kcal E) 4.00 x 104 kcal

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

For exothermic reaction, which of the following is possible : E,> AH E, < AH © E, = AH All of these
I just need questions d, e, f. Thank you.
3. Determine the enthalpy change (AH₂) for the final reaction below. a. CO(g) + ½ O₂(g) → CO₂(g) AH, -67.6 kcal b. N₂(g) + O₂(g) →→→ 2NO(g) AH₂ = 43.2 kcal c. CO(g) + NO(g) →→→ CO₂(g) + ¹½ N₂(g) AH₂ = ?
Which equation is correct for the formation reaction of nitric acid, HNO3? A) N₂(g) + H₂(g) + 30₂(g) → 2HNO3(aq) ΔΗ = 174 kJ B) N₂(g) + H₂(g) + 30₂(g) → 2HNO3(0) AH = -174 kJ C) NH3(g) + N₂(g) + 30₂(g) → 3HNO3(aq) D) 1/2N₂(g) + 1/2H₂(g) + 3/20₂(g) → HNO3(/) 1 E) N₂(g) + H₂(g) + O₂(g) → HNO3(/) ΔΗ = 174 kJ ΔΗ = -174 kJ ΔΗ = -174 kJ
The reaction that produces the water gas mixture, described in Question 6.99, is C(s) + H₂O(g) → CO(g) + H₂(g) This reaction requires an input of 131 kJ of heat for every mole of carbon that reacts. (a) Is this reaction endothermic or exothermic? (b) What is the energy change for this reaction in units of kJ/mol of carbon?
Chemistry; Specific heat to energy
I need hand written solution only
Consider the balanced reaction 7 A + 6 B → 3 C + 6 D. If 3.986 moles of A (MW = 35.44) are consumed, how many grams of D (MW = 35.02) are produced?
Use the References to access important values if needed for this question Ethanol, C2H0, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to bum more efficiently in internal combustion engines. The combustion enthalpy of ethanol is 1366.9 kJ/mol The combustion enthalpy of 2-methylpentane, C6H14 is 4.157x103 kJ/mol. Calculate the energy released during the complete combustion of 382 g 2-methylpentane kJ Assuming the same efficiency, would 382 g ethanol provide more, less, or the same quantity of energy as 382 g 2-methylpentane? | Submit Answer Retry Entire Group 8 more group attempts remaining
Consider the reaction. heat 2 Al(s) + Fe,O,(s) → Al, O, (s) + 2 Fe(1) If 23.1 kg Al reacts with an excess of Fe, O,, how many kilograms of Al, O, will be produced? mass of Al, 0, produced: kg
Dd.62.
General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning Cryolite, Na, AIF,(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al, 0, (s)+NAOH(1)+HF(g) Na, AIF, + H, O(g) If 12.9 kg of Al,0,(s), 56.4 kg of NaOH(1), and 56.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: kg Na, AlF, Which reactants will be in excess? NaOH Al, O3 HF What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books