2a 2. Calculate the grams of the following based on the balanced reactions in Question 1....
Question 14 Which of the reactions is/are redox reactions Question 14 1 pts Which of the reactions is/are redox reactions? 2Li(s) + Cl2(e) - 2LiCl(s) HCl(aq) + LiOH(aq) -> H2O(1) + LiCl(aq) KCIO3(s) →KCIO(s) + O2(g) Ca(NO3)2(aq) + Na2CO3(aq) - 2NaNO3(aq) +CaCO3(s) Ca(NO3)2(s) → 2NO3- (aq) + Ca2+(aq)
Given the following equation, how many grams of Li are needed to produce 10.0 g of H2? 2Li(s) + 2H2O(l) ⟶⟶ 2LiOH(aq) + H2(g) Molar Masses: Li = 6.94 g/mol H2O = 18.02 g/mol LiOH = 23.95 g/mol H2 = 2.02 g/mol
1. (9 points) Balance the following reactions: H3PO4(1) + HCIE) C4H3 + O2 CO2 + H2O PC15(s) + H2O LizNs) LiOH) + NH3(g) C3H12 + O2 CO2 + H2O 2. (12 points) Write and balance the equation based upon the following information. + H2O(1) Include the states of matter: a. Solid aluminum sulfate, carbon dioxide gas and liquid water are produced by the reaction of an aqueous solution of sulfuric acid and solid aluminum carbonate. b. The reaction of fluorine...
Classify the following as acid-base reactions or oxidation-reduction reactions. (a) 3 HClO4(aq) + Fe(OH)3(s) → Fe(ClO4)3(aq) + 3 H2O(l) (b) HC2H3O2(aq) + NaHCO3(aq) → NaC2H3O2(aq) + CO2(g) + H2O(l) (c) 4 H2O(l) + 2 KMnO4(aq) → 2 MnO2(s) + 2 KOH(aq) + 3 H2O2(aq) (d) Cl2(g) + KOH(aq) → KClO(aq) + HCl(aq) (e) 2 Fe(s) + 3 NaOCl(aq) → Fe2O3(s) + 3 NaCl(aq) (f) CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(s) Explain your reasoning
3) Calculate the AH,º for the following reactions based on the standard heat of enthalpy of each compound. AH° (kJ/mol): HCl(g) → -92.3, NaCl(s) →-411.0, NaOH(s) →-426.7. H2O(g) +-241.8 SO2(g) → -296.8, H2S(g) → -20.0, O2(g) → 0.0, H2O(l) →-285.8 a) NaOH(s) + HCl(g) ----> NaCl(s) + H2O(g) b) 2 H2S(g) + 3 O2(g) ---> 2 H2O(l) + 2 SO2(g)
Consider the following chemical reaction. NH3(g) + 2 O2(g) → HNO3(aq) + H2O(l) Calculate the change in enthalpy (ΔH) for this reaction, using Hess' law and the enthalpy changes for the reactions given below. (1a) 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(l); ΔH = −1166.0 kJ/mol (2a) 2 NO(g) + O2(g) → 2 NO2(g); ΔH = −116.2 kJ/mol (3a) 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g); ΔH = −137.3 kJ/mol
Using the balanced equation for the combustion of acetylene, answer the following questions. 2 H―C≡C―H + 5 O2 → 4 CO2 + 2 H2O acetylene a. How many grams of CO2 are formed from 1.4 mol of C2H2? g of CO2 b. How many grams of CO2 are formed from 0.70 mol of C2H2? g of CO2
Calculate ΔH° for each of the following reactions, which occur in the atmosphere.(a) C2H4(g) + O3(g) → CH3CHO(g) + O2(g)(b) O3(g) + NO(g) → NO2(g) +O2(g)(c) SO3(g) + H2O(l) → H2SO4(aq)(d) 2 NO(g) + O2(g) → 2 NO2(g)
6. Given the following thermochemical reactions 2NO N,+O 2NO+O,2NO AH=-180 kJ AH=-112 kJ Calculate the enthalpy change of the reaction of nitrogen with oxygen to produce nitrogen dioxide. N,+20,2NO, AH r? Lo Given the following standard enthalpy of formations: AHor [C2H$OH(I) =-277.7 kJ/mol]; AHOr [CHCO2H) =-484.5 kJ/mol]; AHr [H2O) = -285.8 kJ/mol]; AHn[O2(g) = 0 kJ/mol]. Calculate the AHn for the reaction. C,H.OH()+O,(g) ->CH,CO,H() + H2O(1)
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...