The analysis of a product of combustion on dry basis, when C6H18 was burned with atmospheric air, is as follows: CO2=12%, CO=1.75%, O2=3.01%, N2=83.24%. Compute the actual air-fuel ratio.
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The analysis of a product of combustion on dry basis, when C6H18 was burned with atmospheric air, is as follows: CO2=12%, CO=1.75%, O2=3.01%, N2=83.24%. Compute the actual air-fuel ratio.
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- Dodecane C12H26 is burned at constant pressure with 150% excess air. What is the air-fuel for this process.Write and balance the reaction for the complete combustion of pentyne, C5H8. (Use the lowest possible coefficients.)In an Orsat analysis the % CO2 of the product of the combustion is 20% . If percent excess air is 30% . find the maximum percentage of CO2 attainable.
- In the industrial synthesis of aspirin, 200 kg of salicyclic acid, C7H6O3 and 150 kg of acetic anhydride (CH3CO)2O, form acetylsalicylic acid, C9H8O4, (aspirin) and acetic acid, C2H4O2. In a manufacturing process, 200 kg of aspirin are produced from 200 kg of impure salicyclic acid and 150 kg of acetic anhydride. The salicylic acid is the limiting reagent. Calculate the purity of the salicyclic acid. How many kg of excess reagent are left over, assuming there are no side reactions between the impurities in the limiting reagent and the excess reagent?When butanoic acid (7.0 mL) is dissolved in methanol (20 mL) and heated with a catalytic amount of concentrated sulfuric acid, methyl butanoate (6.5 mL) is isolated. Calculate the per cent yield for the formation of this product. (Use a mole for the process)10.5mL (mw 106) of benzaldehyde and 2.9g(3.63mL, mw 40) of acetone react with 5g of NaOH and 25mL of Ethanol to form 6.7g of Dibenzalacetone. What is the theoretical, actual and percent yield?
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- A sample containing chlorophenol, C6H4ClOH, was analysed by gravimetric analysis. A 0.783-g of this sample goes through a chemical process allowing the chlorine in the chlorophenol to precipitate as silver chloride, weighing 0.271 g. Calculate the % (wt/wt) of the chlorophenol in the sample, assuming that chlorophenol is the only source of chlorine in the sample. Provide your answer to two decimal places and without units. Avoid using scientific notation.Carla and her friends were tasked with determining the heat of reaction for the neutralization of the newly synthesized monoprotic acid HX and NaOH. The rubber ball calorimeter was initially calibrated using the reaction of 7.0 mL of 0.200 M HCl and 14.0 mL of 0.1000 M KOH. This measured a temperature rise from 15.7 °C to 27.9 °C. After that, the heat of reaction was calculated for a combination of 2.00 mL of 1.00 M NaOH and 5.0 mL of 1.00 M HX. This represented a temperature rise of 3.7 degrees Celsius. What is the calorimeter's heat capacity in J/°C? (Δ??????????????? =-55.85 kJ/mol)? For the reaction between NaOH and HX, create the chemical and net ionic equations that are equally balanced.Carla and her friends were tasked with determining the heat of reaction for the neutralization of the newly synthesized monoprotic acid HX and NaOH. The rubber ball calorimeter was initially calibrated using the reaction of 7.0 mL of 0.200 M HCl and 14.0 mL of 0.1000 M KOH. This measured a temperature rise from 15.7 °C to 27.9 °C. After that, the heat of reaction was calculated for a combination of 2.00 mL of 1.00 M NaOH and 5.0 mL of 1.00 M HX. This represented a temperature rise of 3.7 degrees Celsius. The neutralization reaction between HX and NaOH has an experimental enthalpy of (in kJ/mol). What is this? Is the reaction between NaOH and HX endothermic or exothermic?