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- Manganese oxide can be reduced to elemental manganese in the presence of methane (CH4). The products of the reaction are manganese metal, CO2, and water vapor. Practice only reporting the correct significant figures in all answers! a. Write a balanced reaction for the reduction of manganese (IV) oxide with methane to elemental manganese. b. Write a balanced reaction for the reduction of manganese (II) oxide with methane to elemental manganese. c. What is the mass percent of manganese in manganese (IV) oxide? d. What is the mass percent of manganese in manganese (II) oxide? e. A mixture of manganese (IV) oxide and manganese (II) oxide is reduced in the presence of methane. After ten different trials utilizing different masses of unknown mixture, the data was plotted (mass of mixture versus mass of manganese produced) a slope of 0.6854 was obtained. What is the mass percentage of manganese (IV) oxide and manganese (II) oxide in the mixture?What type of reaction and how much energy is involved in a reaction of boron trichloride with hydrochloric acid? B2H6(g) +6Cl2(g) ⟷2BCl3(g) + 6HCl(g) ΔH= -755.4 kJ/mole Group of answer choices Exothermic with ΔH = -755.4 kJ/mole. Exothermic with ΔH = +755.4 kJ/mole. Endothermic with ΔH = -755.4 kJ/mole. Endothermic with ΔH = +0.001324 kJ/mole. Endothermic with ΔH = +755.4 kJ/mole.In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water. 2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(g) (a) How many moles of O2 are needed to react with 6.00 moles of C2H2?(b) How many moles of CO2 are produced when 4.5 moles of C2H2 reacts?(d) How many moles of CO2 are produced from 0.100 mole O2?
- 3. Syngas is a mixture of carbon monoxide, carbon dioxide, and water vapor that is used for making fertilizer, methanol, and other products. It is produced by heating fossil fuels under low-oxygen conditions to promote incomplete combustion. Write an equation for the complete combustion of the gasoline component cyclopentane, C5H10 (l) and the incomplete combustion of cyclopentane with 20% of the carbon appearing as CO(g).Given 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 kJGiven the following reaction: 2CH₃OH(l) + 3O₂(g) → 2CO₂(g) + 4H₂O(g) ∆H = -1277 kJ What is the energy change when 25.3 g of CH₃OH react with excess O₂?
- Stoichiometric calculations. Show computations K, a pharmaceutical scientist aims to synthesize paracetamol by reacting 3.075 mg of p-aminophenol and 2.25 milliliters of acetic anhydride to produce paracetamol and acetic acid. C6H7NO + C4H6O3 à C8H9NO2 What is the limiting reactant? How many grams of paracetamol was formed? K was able to produce 1.88 grams of paracetamol. What is the percentage yield?For the following reaction: 5Ca + V2O5 --> 5CaO + 2V In one process 5 moñ of V2O5 react with 3 mol of acá. Calculate the theoretical yield of V in the unit of mol.Carbon dioxide emissions associated with a one-night stay in a hotel room are calculated at 29.53 kg of CO2 per room day for an average hotel. The 200 rooms of your hotel are all occupied for two days during a college football game. How much CO2 did the guests and hotel release into the atmosphere?
- Carbon dioxide emissions associated with a one-night stay in a hotel room are calculated at 28.98 kg of CO2 per room day for an average hotel. The 250 rooms of your hotel are all occupied for two days during a college football game. How much CO2 did the guests and hotel release into the atmosphere? Round your answer to the nearest whole number. kgsHow much energy is evolved/absorbed (answer is ___________ ) when 444 g of NBr3 is produced ? N2 + 3 Br2 → 2 NBr3 + 44.0 kJ The molar mass of NBr3 is 253.719 g _____________ mol NBr3 (444 g NBr3)(–––––––––––––––––––––––––) = ______________ mol NBr3 ___________________ g NBr3 _________________ kJ ________________ mol NBr3 (–––––––––––––––––––––––––––––) = ____________________ kJ _________________ mol NBr3If the empirical formula of a compound is found to be CH2, which of the following value is a plausible molecular mass for the compound? The answer is 70.15. How did you get that?