Explain why it is problematic to include a constraint such as the following in an LP model for a blending problem: Total octane in gasoline 1 blend $ divided by Barrels of gasoline 1 blended daily which is greater thanor equal to 10
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Explain why it is problematic to include a constraint such as the following in an LP model for a blending problem: Total octane in gasoline 1 blend $ divided by Barrels of gasoline 1 blended daily which is greater thanor equal to 10
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- Calculation of AH; of Magnesium Oxide Mg + 2 HCI MgCl2 * Hz2 AH, = kJ/mole MgCl2 +H2O > Mgo + 2 HCI -AH2 = kJ/mole He + 를 O2 + H2O AH3 = - 286 kJ/mole net: Mg + 을 O2- MgO 사Hnet = kJ/mole The literature value for the AHf of magnesium oxide is -602 kJ/mole.A fuel contains 78wt% carbon and 22wt% hydrogen (H). Combustion results in the following composition by volume (dry basis): CO2 : 9.41 CO : 1.69 O2 : 3.8 N2: 85.1 The following equations describe the chemical reactions taking place: CO+0.5 O2→ CO2 C+O2→ CO2 H2 + 0.5 O2 → H2O C+0.5O2→ CO On the basis of 120 lb moles of dry flue gas, the O2 required (lb moles) for complete combustion is most nearly. Find the amount of O2 needed for the completion of combustionPage < 2 of 2 ZOOM + 7. Write balanced chemical eqess | esc | to exitTO Screen ctions. a. production of ammonia, NH3(g), by combining N2(g) and H2(g) b. production of methanol, CH3OH(1), by combining H2(g) and CO(g) c. production of sulfuric acid by combining sulfur, oxygen, and water 8. Diborane and related compounds were proposed as rocket fuels in the 1950s. A representative reaction for this class of molecules is that of B2H6 and O2 to form B2O3 and H2O. Write the balanced chemical equation for this process. 9. Silicon nitride, Si3N4, is used as a reinforcing fiber in construction materials. It can be synthesized from silicon tetrachloride and ammonia. The other product is ammonium chloride. Write the balanced chemical reaction for this process. 10. Classify the following compounds as electrolytes or nonelectrolytes: a. potassium chloride, KCl b. hydrogen peroxide, H2O2 c. methane, CH4 d. barium nitrate, Ba(NO3)2
- Cyclopropane (CH2)3 was burned to carbon dioxide and liquid water, as represented by the equation (CH2)3(g) + 9/2O2(g) = 3CO2(g) + 3H₂O(1) The heats of combustion of (CH2)3, carbon, and H₂ are, -500.0, -94.0 and -68.0 kcal mol-¹, respectively. The heat of formation of propylene, CH3CH=CH₂ is 4.9 kcal/mole. Calculate the heat of isomerization (in kcal mol-¹) of (CH₂)3 to propylene.Ethylene Glycol C₂H₆O₂ (62g/mole) is an organic compound, mainly used for two purposes, a material for antifreeze in aviation. With 5,3664g of ethylene glycol and 2,678g of O₂ (16g/mole) C₂H₆O₂ + 2O₂ -> C₂H₂O₄ + 2H₂O a. Which of the two reactants is the limiting reagent? b. Calculate the mass of oxalic acid (C₂H₂O₄, 90.03g/mol) formed c. How much excess reagent (in grams) is left at the end of the reaction? d. How many grams of H₂O (18 g/mole) will be produced?Mail - Scheffel, Reagan - Outlook X ABP R : X Submit + 9:43 PM 11/4/2022
- 3-5: Heat of Combustion: Chicken Fat The heat of combustion (AHcomb) is the heat of reaction for the complete burning (reacting with O2) of one mole of a substance to form CO, and H,O. Calorimetry experiments that measure the heat of combustion can be performed at constant volume using a device called a bomb calorimeter. In a bomb calorimeter a sample is burned in a constant-volume chamber in the presence of oxygen at high pressure. The heat that is released warms the water surrounding the chamber. By measuring the temperature increase of the water, it is possible to calculate the quantity of heat released during the combustion reaction. In this assignment you will calculate the heat of combustion of chicken fat. The calorimeter has already been calibrated by combusting benzoic acid. 1. Start Virtual ChemLab, select Thermodynamics, and then select Heat of Combustion: Chicken Fat from the list of assignments. The lab will open in the Calorimetry laboratory with the bomb calorimeter out…In part 1 of this lab, you will be calculating A,H by conducting constant-pressure calorimetry measurements. One of the steps you will take is calculating AT of the water inside the test tube and then using the formula qcal = mx Cs x AT. What mass (m) will you be using in the above formula? Select one: Mass of the magnesium strip Mass of the aqueous solution, since we are measuring its temperature using the thermometerGiven the data: 1. Mass of test tube + MNO² = 21.5403g 21.5403g 2. Mass of the test tube + MnO² + KClO³ + KCl 22.5518g 3. Constant mass of test tube + reaction product 22.3514g Percent of KClO3 in KClO3 & Mixture
- ✓ 个 < app.101edu.co STARTING AMOUNT X How many grams of oxygen gas are produced when 2.43 x 104 g of KCIO, are completely reacted according to the following chemical equation: 3.5 1 ADD FACTOR * ( ) 32.00 9.52 x 10-5 g KCIO3 2 KCIO3(s) → 1.90 x 10-4 Question 31 of 38 2 mol KCIO3 O 3 2 KCI(S) + 3 M 74.55 mol KCI ANSWER 31 1.98 x 10-6 5.95 x 10-6 mol O₂ O₂(g) 2.43 x 104 6.022 x 10²3 g 0₂ by RESET 2 2.97 x 10-6 122.55 g KCI Feb 23 7:11 Oused in the manufacture of cement: ate rock (limestone) is heated to produce the quicklime, i.e., calcium oxide, Carbon dioxide is also released into the atmosphere when calcium carbon- PROBLEM 44 CACO3(s) CaO(s) + CO;(g) Calculate the mass, in metric tons, of CO2 released per metric ton of lime- une used in this process. What is the mass of carbon that the air gains for each of carbon dioxide that enters the atmosphere? Note that at least gram os much carbon dioxide is released from combustion of the fossil fuel needed to heat the limestone as is released from the limestone itself.Mail - Thom P Parchment 8 https://app.101edu.co 80 F3 1 TW6D2PHI.pdf + Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. K₂SO4 (aq) + FeCl3(aq) → 04- Fe Reset 000 000 F4 2 2 3- % Unofficial Transc 03 3 4 ( ) B F5 0²- Question 6 of 40 04 CI K A UAFS Regist Graduation Appl 05 0+ 5 6 7 F6 02+ & 07 (s) MacBook Air O NR AA F7 3+ 8 9 08 (1) 04+ * New Tab • x H₂O DII F8 (g) (aq) 0 S ☐o IC My UAFS- Delete F9