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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.
Two liters of a buffered solution are created from 0.45 M HC2H3O2 (Ka = 1.8 x 10^-5) and 0.36 M NaC2H3O2. (a) What is the pH of this solution
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
If 32.0 g CaC2 are consumed in this reaction, how many moles of H2O are needed?
200 ml of 1.00m naoh is reacted with 200 ml of 1.00 m hcl in a calorimeter. the calorimeter and the solutions were at
Calculate the volume of glacial acetic acid (17.6 M) and weight of sodium acetate (mm = 82.03) that is required to make 102 ml of 0.2 M buffer at pH 4.85. The Ka of acetic acid is 1.4 x10^-5.
A tiny speck (8.3 x 10-7 mol) of americium-241 is used in smoke detectors, how many atoms of americium-241 are there in one of these smoke detectors?
Calcium nitrate solution is added to a solution of sodium phosphate
Antimony has two naturally occurring isotopes, Sb-121 (mass = 120.9038 amu) and Sb-123 (mass = 122.9042 amu). Calculate the percent abundances of these isotopes of antimony.
Petroleum is a fossil fuel containing many different carbon compounds. If the carbon atoms in petroleum have been in the ground for 325 million years
If 7.25 g of Al and 30.7 mL of 1.22 M HNO3 are allowed to react according to the equation below: 2 Al (s) + 6HNO3 (aq) -----> 3H2 (g) + 2Al(NO3)3 (aq) a) determine the limiting reactant. b) What is the volume of Hydrogen in liters that produced a ..
The Ka value for acetic acid, CH3COOH (aq) is 1.8x10^-5 M. Calculate the pH OF 3.00 M acetic acid solution. Next, calculate the pH of the resulting solution when 2.501 mL of the 3.00 M acetic acid is diluted to make
A student prepared a saturated solution of copper (II) tartrate by cooling it to 10 degrees C. While the solution was still cool, the concentration of copper (II) was determined. How would the value of the solubility product (Ksp) be affected? Exp..
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