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- Photosynthesis in plants converts carbon dioxide and water into glucose (C6H1206) and oxygen according to the equation below. 6CO2 (g) + 6H20a → C6H1206 (s) + 602 (g) Substance СО2 (8) H20M C6H1206 (s) 02 (g) kJ AH°; (mol -393.5 -285.8 -1273.3 J H° mol. k 213.6 69.9 209.2 205.0 Calculate the AHº, ASº, and AGº. Is the reaction spontaneous at standard conditions?A lecture hall contains 12 rows of seats. If the professor releases laughing gas (N2O) from the front of the room and tear gas (C6H11OBr) simultaneously from the back of the room, in which row are the students apt to start and to cry simultaneously?The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from gaseous propylene, ammonia, and oxygen: 2C3H6(g) + 2NH3(g) + 302(g) → 2C;H;N(g)+ 6H2O(g) Assuming 100% yield, determine the mass of acrylonitrile which can be produced from the mixture below: Mass Reactant 3.05x102 g propylene 5.00 x 102 g ammonia 1.00х 103 g охуgen g = mass of acrylonitrile produced What mass of water is formed from your mixture? mass of water formed = Calculate the mass (in grams) of each reactant after the reaction is complete: Reactant Mass remaining propylene ammonia охуgen
- When two cotton plugs, one moistened with ammonia and the other with hydrochloric acid, are simultaneously inserted into opposite ends of a glass tube that is 87.0 cm long, a white ring of NH4Cl forms where gaseous NH3 and gaseous HCl first come into contact.NH3(g) + HCl(g) ⟶ NH4 Cl(s)At approximately what distance from the ammonia moistened plug does this occur?Based on the reactions: 2NO2 (g) + 2N0 (g) + O2 (g) – – > 2N½O4 (g) ; AH = -228.54 kJ 4NO (g) +2N2O (g) + 50, (5) – – > 4N,O4 (g) ; AH,=-488.46 kJ 2NO (g) + O2 (g) – - > N,O4 (g) ; AH3 = –171.34 kJ- Use Hess's Law to calculate AH for: 4N204 (g) - - > 2N½O (g) + 302 (9) + 4NO2 (g)(b) Study the following themochemical data very carefully: Ciz(g) - 2ci(g) I2(g) IC(g) - 1(g) + CI(g) I2(s) → 12(g) AH° = 242.3 kJ AH° = 151.0 kJ 21(g) AH° = 211.3 kJ AH° = 62.8 kJ I2(s) reacts with Cl2(g) to produce ICI(g). Write the chemical equation to produce ONLY one mole of ICI(g) (i) Calculate AH° for the reaction of I2(s) with Cl2(g) to form 1 mole of ICI(g). Use all the data given above. (ii) What law did you use to calculate AH° above? (iii) What are the names of the following processes? I2(s) → 12(g) I2(g) 21(g) ICI(g) I(g) + Cl(g)
- Given the following data: AHr [CH:(g)] = -75 kJ mol· C(graphite) → C(g) AH = +712 kJ mol 1/2H2(g) – H(g) AH = +215.5 kJ mol 13. The bond enthalpy in kJ mol·' of the C-H bond in methane is A +375 B +412 C 375 D -412Natural gas consists primarily of methane, CH4(g).(a) Write a balanced chemical equation for the completecombustion of methane to produce CO2(g) as the onlycarbon-containing product. (b) Write a balanced chemicalequation for the incomplete combustion of methaneto produce CO(g) as the only carbon-containing product.(c) At 25 °C and 1.0 atm pressure, what is the minimumquantity of dry air needed to combust 1.0 L of CH4(g) completelyto CO2(g)?For a particular isomer of Cg H₁g, the combustion reaction produces 5108.7 kJ of heat per mole of Cg H₁ (g) consumed, under standard conditions. C8H18 (g) + -25 0₂(g) →→→ 8 CO₂(g) + 9 H₂O(g) AH; = ΔΗ What is the standard enthalpy of formation of this isomer of Cg H₁8 (g)? 18 -208.5 Incorrect ▲Hixn = -5108.7 kJ/mol kJ/mol
- 'cat' represnts HA 'mat' represents H3O+ 'rat' represents A- Container(i) has 1 cat, 4 mat, 4 rat. Container(ii) has 4 cat, 1 mat, 1 rat. Container(iii) has 2 cat, 3 mat, 3 rat. Container(iv) has 3 cat, 3 mat, 3 rat. Container(v) has 9 cat, 2 mat, 2 rat. From the given information, identify (a) Strongest Acid (b) Weakest Acid (c) Highest pKa2 CO (g) O2 (g) → 2 CO, (g) Exothermic or endothermic▼ Part F telavancin, C80 H106 Cl2N11O27P Express your answer in percent to three significant figures. ΤΙ ΑΣΦΑ %0 24.6 Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? %