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15) The molecular weight of a gas that has a density of 7.10 g/, at 250...
4 Na(s) + O2(g) --> 2 Na2O(s) ΔH0 = - 828 kJ This reaction is _______,...
4 Na(s) + O2(g) --> 2 Na2O(s) ΔH0 = - 828 kJ This reaction is _______, and therefore heat is_____ by the reaction. a)exothermic, absorbed b)exothermic, released c)endothermic, absorbed d)endothermic, released
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184)...
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184) A) 0.1750 cal. B) 0.5230 C) 7322 cal. D) 29.88 cal. E) 41.83 cal. 3. Of the following. AH, is zero for A) Fe(1) B) AI () C) 02 (8) D) Cl: () E) Cl (1) 4. Which of the following sets of subshells is in the correct order from low to high energy for a multi-electron atom. A) Is, 2p, 25 B) 2,...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cat. A) 0.1750 cal. B) 0.5230 C) 732.2 cal. D) 29.88 cal. alories (cal). (I cal. = 4.184J D) 29.88 cal. E) 41.83 cal. E) Cl (1) D) CH (8) _3. Of the following. AH is zero for A) Fe (1) B) Al(s) C) 02 (8) D) Cl(s) --4. Which of the following sets of subshells is in the correct order...
Please work out #29. Easiest way please and steps please Edit View Go Tools Window Help...
Please work out #29. Easiest way please and steps please
Edit View Go Tools Window Help s mock test 2 Tanvir.pdf (page 4 of 5) vir's Mock Test mL of a 0.827 M KOH solution is required for 29) In a titration of 35.00 mL of 0.737 M H S0 30) The concentration of chloride ions in a 0.193 M solution of potassium chloride is 31) Which one of the choices below is not considered a renewable fuel source? neutralization....
1. 18 g of LiCl(s) is dissolved in 18.0mL of water that is initially 20.0°C. a)...
1. 18 g of LiCl(s) is dissolved in 18.0mL of water that is initially 20.0°C. a) Write the chemical equation for the dissolution of LiCl(s) b) Calculate the molar enthalpy of dissolving LiCl(s) in water. Is this process endothermic or exothermic? c) Calculate the amount of heat absorbed/released when 1.18 g of LiCl(s) dissolves. d) Calculate the final temperature of the solution. You can assume the heat capacity of solution is equal to the heat capacity of water (dwater =...
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B....
1. The dimensions of the SI unit of energy, the Joule (J), are A. K B. kg m s C. kg m2 s-2 D. kg m-1 s-2 E. kg m2 s-1 2. Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3 kilojoules of energy. How much energy does that represent in kilocalories? A. 3.36×103 kcal B. 3.357 kcal C. 191.8 kcal D. 0.192 kcal E. 1.918×105 kcal 3. What is the change in...
Prepare yourself for the laboratory: Question #2 1.26 g of LiCl(s) is dissolved in 25.0 mL...
Prepare yourself for the laboratory: Question #2 1.26 g of LiCl(s) is dissolved in 25.0 mL of water that is initially 21.0°C a) Write the chemical equation for the dissolution of LiCl(s) b) Using the thermodynamic tables in Appendix II of Tro, calculate the molar enthalpy of dissolving LiCI(s) in water. Is this process endothermic or exothermic? Calculate the amount of heat absorbed/released when 1.26 g of Licl(s) dissolves. c) d) Calculate the final temperature of the solution. You can...
Calculate AU of a gas for a process in which the gas absorbs 29 J of...
Calculate AU of a gas for a process in which the gas absorbs 29 J of heat and does 31 J of work by expanding A. 21 B. 60) C. -60J D. -2J Which of the following statements is not true for an exothermic reaction? A. Heat passes from the reaction system to the surroundings. B. The products have a higher heat content than the reactants. C. The temperature of the reaction system increases D. The enthalpy change for the...
10. Given the thermochemical data below, what is the change in enthalpy when 10.0 g of...
10. Given the thermochemical data below, what is the change in enthalpy when 10.0 g of H, are reacted? N; (g) + 3H2(g) → 2NH, (g): AH = -91.2 kJ (A) -452 kJ (B) +452 kJ (C) -151 kJ (D) -1357 kJ 11. Which of the following is NOT a state function? 1. Heat 2. Change in enthalpy 3. Change in internal energy 4. Change in pressure (A) 1 only (B) 2 only (C) 2 and 3 (D) 1 and...
36. How much heat is gained by nickel when 500 g of nickel is warmed from...
36. How much heat is gained by nickel when 500 g of nickel is warmed from 22.4 to 584"C? me specific 0.444 J/KB C). 37. Given the following data of the standard enthalpy changes, find the heat required for the reaction converting solid sulfur to gaseous sulfur at 298 K and I atm pressure. heat of nickel is A) 2000J B 4000 C) 60003D) 8000 E) 100003 A)-1013k/rnol B)+618klmol C)-618 kimiol D)-223 kinol E)+223 kinnol 38. Calculate the standard heat...
__2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cal. = 4.184) A) 0.1750 cal. B) 0.5230 C) 7322 cal. D) 29.88 cal. E) 41.83 cal. 3. Of the following. AH, is zero for A) Fe(1) B) AI () C) 02 (8) D) Cl: () E) Cl (1) 4. Which of the following sets of subshells is in the correct order from low to high energy for a multi-electron atom. A) Is, 2p, 25 B) 2,...
HUBY B) b only C) conly 2. Convert the energy value of 175.0 Joules (J) to calories (cal). (I cat. A) 0.1750 cal. B) 0.5230 C) 732.2 cal. D) 29.88 cal. alories (cal). (I cal. = 4.184J D) 29.88 cal. E) 41.83 cal. E) Cl (1) D) CH (8) _3. Of the following. AH is zero for A) Fe (1) B) Al(s) C) 02 (8) D) Cl(s) --4. Which of the following sets of subshells is in the correct order...
Please work out #29. Easiest way please and steps please
Edit View Go Tools Window Help s mock test 2 Tanvir.pdf (page 4 of 5) vir's Mock Test mL of a 0.827 M KOH solution is required for 29) In a titration of 35.00 mL of 0.737 M H S0 30) The concentration of chloride ions in a 0.193 M solution of potassium chloride is 31) Which one of the choices below is not considered a renewable fuel source? neutralization....
Prepare yourself for the laboratory: Question #2 1.26 g of LiCl(s) is dissolved in 25.0 mL of water that is initially 21.0°C a) Write the chemical equation for the dissolution of LiCl(s) b) Using the thermodynamic tables in Appendix II of Tro, calculate the molar enthalpy of dissolving LiCI(s) in water. Is this process endothermic or exothermic? Calculate the amount of heat absorbed/released when 1.26 g of Licl(s) dissolves. c) d) Calculate the final temperature of the solution. You can...
Calculate AU of a gas for a process in which the gas absorbs 29 J of heat and does 31 J of work by expanding A. 21 B. 60) C. -60J D. -2J Which of the following statements is not true for an exothermic reaction? A. Heat passes from the reaction system to the surroundings. B. The products have a higher heat content than the reactants. C. The temperature of the reaction system increases D. The enthalpy change for the...
10. Given the thermochemical data below, what is the change in enthalpy when 10.0 g of H, are reacted? N; (g) + 3H2(g) → 2NH, (g): AH = -91.2 kJ (A) -452 kJ (B) +452 kJ (C) -151 kJ (D) -1357 kJ 11. Which of the following is NOT a state function? 1. Heat 2. Change in enthalpy 3. Change in internal energy 4. Change in pressure (A) 1 only (B) 2 only (C) 2 and 3 (D) 1 and...
36. How much heat is gained by nickel when 500 g of nickel is warmed from 22.4 to 584"C? me specific 0.444 J/KB C). 37. Given the following data of the standard enthalpy changes, find the heat required for the reaction converting solid sulfur to gaseous sulfur at 298 K and I atm pressure. heat of nickel is A) 2000J B 4000 C) 60003D) 8000 E) 100003 A)-1013k/rnol B)+618klmol C)-618 kimiol D)-223 kinol E)+223 kinnol 38. Calculate the standard heat...
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