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In order to get maximum calorific output, a burner should have anoptimum fuel to oxygen ratio which corresponds to 3 times as muchoxygen as is required theoritically for complete combustion of the fuel. A burner which has been adjusted for methane as fuel (with Xlitre/ hour of CH4 and 6X litre/ hour of O2)is to be readjusted for butane, C4H10. Inorder to get the same calorific output, what should be the rate of supply of butane and oxygen? Assume that losses due to incompletecombustion, etc are same for both the fuels and gases behaveideally.Heats of combustion : CH4 = 809kJ/ mol,C4H10 = 2878 kJ/ mol.
Microwave ovens emit microwave energy with a wavelength of 12.0 cm. What is the energy of exactly one photon of this microwave radiation
Calculate the mass of precipiate formed when 110.0 mL of a 0.100M Ba(NO3)2 solution is added to 140.0 mL of a 0.100M Na2SO4 solution.
The IR spectrum of benzoic acid is included on page 3. Assign three specific absorbance bands (from the peak list below the spectrum) to the corresponding bond vibrations
Calculate the percent ionization of formic acid (HCO2H) in a solution that is 0.311 in formic acid and 0.189 M insodium formate (NaHCO2). Ka of formic acid is 1.77*10^-4
Write a balanced chemical reaction (using structural formulas) that describes a NAS reaction between benzyl alcohol and propanoic anhydride.
What region of IR spectrum (give a range in wave numbers) is most useful for distinguishing between isomers that contain the same functional groups
Calculate the standard reduction potential for the reaction for the reaction Cu(III) to Cu(II).
Draw the Lewis dot structure of phosgene. Include all 3 resonance forms by alternating the double bond among the 3 terminal atoms. Which resonance structure is best?
of the metal ions we tested in the flame, sodium gave the brightest and most persistent color. Do you think that if a mixture of potassium and sodium were burned in a flame, the gross color of potassium could be detected in the presence of sodium
explain the interaction effect between nitrogen and phosphorus and nitrogen and potassium. describe the dynamics amoung
An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
Calculate the enthalpy change for converting 10.00g of ice at -25.0°C to water at 70.0°C in kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,.
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