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A mixture of propane (75 mol%) and hydrogen are burned with 25% excess air. Fractional conversions of 95% of the propane and 80% of the hydrogen are achieved; of the propane that reacts, 90% reacts to form CO2 and the balance reacts to form CO. The hot combustion product gas passes through a boiler in which heat transferred from the gas converts the boiler feedwater to steam. Calculate the concentration of CO (ppm) in the stack gas.
dissolved in enough water to make 250.0 mL of solution. Write the hydrolyis reaction for the ion that controls the pH, and calculate the pH
Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
Calculate the boiling point of a 2.97m aqueous solution of ethylene glycol, a nonvolatile nonelectrolyte.
A solution is made by dissolving 0.75 g of salt in 100.00 g of water. Calculate the % m/m for the solution. *0.74% m/m *0.75% m/m *7.5% m/m *7.4% m/m
Write the mass balance equation and charge balance equation for a solution that is 0.1 M FeCl3 and 0.2 M FeCl2
A solid object is made of two materials, one material having density of 2.4 g /cm3 and the other having density of 8.6 g/cm3. If the object contains un-equal masses of the materials (75/25), what is its average density
9.780 grams of gaseous mixture contains ethane ,C2H6 and propane ,C3H8. it needs 1.120mol of oxygen when complete combustion to form CO2 and H2O. Compute the mass percent of C2H6 in the original mixture.
What volume of 1 M NaOH would you need to add to 200 mL of 0.2 M acetic acid solution to achieve a pH of 7.0 (the pKa of acetic acid is 4.76)? A)0.23 mL B)6.952 mL C)173.8 mL D)39.77 mL
How does lowering the temperature of the chambers in the simulation change the speed at which the molecules move?
A mixture of CaCO3 and CaO weighing 0.630 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.500 g.
what steps are needed to prepare phenylacetylene from C6H5CH2CH2Br I chose the following reagents 1. H2SO4, 2. Br2, 3. NaNH2/excess (were correct) and simply require to draw the intermediate
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