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When heated,
a. What is the pressure, in millimeters of mercury, of the dry
b. How many moles of
c. How many grams of
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- 9:15 Question 14.d of 40 In welding, the temperature of the flame produced by the combustion of acetylene and oxygen varies based on the balance of the two gases in the reaction. The heat is used to melt metal so that pieces of metal can be joined together. 2 5 8 If the temperature of a neutral flame (equal proportions of oxygen and acetylene) is 3460 °F, what is this temperature in °C? °C 1 4 7 +/- Tap here or pull up for additional resources . LTE Submit 3 6 9 O XU x 100arrow_forwardGiven the following reaction, how much energy would be produced if 3.59 L of oxygen gas reacted with excess C2H5OH @ STP? C2H5OH (g) + 3 O2 (g) ⟶ 2 CO2 (g) + 3 H2O (l) ΔH = -1020 kJarrow_forward8. The equation below represents the burning of carbon disulfide, CS20 in a calorimeter. CS20) + 302(g) → CO2(g) + 2SO2(g) + 1690 kJ What mass of CS20 must have burned to increase the temperature of 1.0 kg of water by 15.5°C? [2.92g] n 1471 m -0.967arrow_forward
- 33.9 Given the following two reactions and their enthalpy changes, 2 ClO2 (g) --> Cl2 (g) + 2 O2 (g) Delta H = – 204 kJ 2 TiCl4 (l) + 2 O2 (g) --> 2 TiO2 (s) + 4 Cl2 Delta H = – 139.8 kJ What is the value of the enthalpy change for the reaction that is the sum of these two reactions? 2 ClO2 (g) + 2 TiCl4 (l) --> 2 TiO2 (s) + 5 Cl2 Delta H = ? Select one: a. – 64 kJ b. – 344 kJ c. 64.2 kJ d. 64 kJ e. 344 kJ f. – 204 kJ g. none of thesearrow_forwardL. Using Table 1, calculate AH; for each of the following reactions. Tell if each is exothermic or endothermic. a. 2 NO(g) + 0:(8) → 2 NO:(g) b. 2 C,Hlg) + 70:(g) → 4 CO.(g) + 6 H;0(g) c. N:(g) + 3 H:(g) - 2 NH:(g) d. 2 CH;OH(1) + 3 0:(g) → 2 CO:(g) + 4 H;0(g) e. 2 SO:(g) + 0:(8) + 2 S0,(g) f. 2 CH«(g) + 30:(8) → 2 CO:(g) + 2 H;0(g) & 2 CO(g) + O:(8) → 2 CO:(g) h. N;(8) + O:[g) → 2 NO(8) II. Calculate AH, for each of the following (using Table 1). i CHxo from the reaction 2 C;H:(B) + 5 0:(g) → 4 CO:(g) + 2 H;0(g) + 600kcal i CHo from the reaction CH«(g) • 2 0:(g) CO:(g) + 2 H;0(g) + 192 kcal III. Given the following reactions k S+ 0: - So: 71.0 kcal 2 so, + 0: - 2 s0, + 47.0 kcal Calculate AH, for 2 S + 3 0: - 2 SO, L 2C + 0, - 2 co + 52.8 kcal 2 co + 0; - 2 CO; + 125 kcal Calculate AlH, for C + 0z - co: IV. Calculate AH, AS and AG at 25 C, and tell if the reaction will go spontaneously (use Table 1 and 2) m. N:(g) + 3 H:(R) → 2 NH:(8) n. 2 CO(g) + 0:(g) - 2 CO:(8) a 2 CH:(g) + 5 0:(8)…arrow_forward11. A car has been fitted with an internal combustion engine that uses ethane as a fuel, which undergoes the following reaction when combusted: 2C2H6(g) + 702(g) → 4CO2(g) + 6H2O(g). Ethane (C2H6) has a molecular weight of 30.1 g/mol and a heat of reaction of -2,855.4 kJ/mol at 25°C. What is the AS° for this reaction at 25°C?arrow_forward
- Part I. Complete the following chemical reactions. Do not forget to balance the reaction, the states of matter and answer any questions that are asked. In the next reaction, a gas is formed. (19 points). HCl (aq) + Mg (s) → Gas that was released: Mg (s) + O2 (g) → Cu2S (s) + O2 (g) → Gas that was released:arrow_forwardHow many kilojoules of energy will be needed to decompose 13.5 grams of N2O5 gas? (MM N2O5= 108.02 g/mol) 2N2O5(g) ⟶ 4NO2(g) + O2(g) ΔH = 110 kJ/molarrow_forward2. 13.9 g of ammonium nitrate is dissolved in a total volume of 225 mL in a coffee cup calorimeter. If the initial temperature of the water is 27.0 °C, what will the final temperature of the solution be if the heat of solution of ammonium nitrate is 25.7 kJ/mol? Density of the solution is 1.02 g/mL, the specific heat is approximately 4.17 J/g.ºC, and the molar mass of ammonium nitrate is 80.043 g/mol.arrow_forward
- Part 1: Ideal Gas Law, STP, and Stoichiometry (section 8.6. 8.7) Combination of all four gas laws leads to the ideal gas law, PV = nRT Ris the ideal gas constant (R = 0.0821 L;atm/mol:k or R = 8.314 J/mol:K) 1. How many moles of a gas are there in a 1.00 L container, at 373 K under 775 mmHg pressure? Show your work including all unit conversions. 2. Calculate the volume of 20.5 g of NH3 gas at 0.658 atm and 25 °C. Show your work including all unit conversions. 3. Hydrochloric acid reacts with aluminum metal to produce hydrogen gas. 2AI (s) + 6HCI (ag) → 2AICI (ag) + 3H2 (g) a) How many moles of H2 gas are produced by the reaction of 12.8 g Al metal with excess HCI? Show your work including all unit conversions. b) How many liters of H2 gas can be collected if the reaction occurs under STP (0 °C and 1 atm) conditions? Show your work including all unit conversions.arrow_forwardAcetic acid, HC2H3O2, is the sour constituent of vinegar (acetum is Latin for vinegar). In an experiment, 3.58 g of acetic acid was burned. HC2H3O2(l)+2O2(g)2CO2(g)+2H2O(l) If 52.0 kJ of heat evolved, what is H per mole of acetic acid?arrow_forwardGiven the following data 2 CIF (g) + O₂(g) → Cl₂ O(g) + F₂O(g) 2 CIF3 (9) +202 (g) → Cl₂ O(g) + 3F₂O(g) 2F2 (g) + O₂(g) → 2F₂O(g) calculate A H for the reaction AH= CIF (g) + F2 (g) → CIF3 (9) Submit Answer kJ Try Another Version ΔΗ = 167.4 kJ Δ Η = 341.4 Κ Δ Η = -43,4 kJ item attempt remainingarrow_forward
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