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A 9.219 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 18.42 grams of CO2 and 7.541 grams of H2O are produced. In a separate experiment, the molar mass is found to be 88.11 g/mol. Determine the empirical formula and the molecular formula of the organic compound. empirical and molecular formula
Step-wise solution to a numerical problem related to a flocculation-based water treatment plant having a flow of 25 MGD. The plant is to employ alum coagulation.
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
What hybrid orbital would be expected for the central atom in each of the following: Draw the molecular structure of these compounds and label Ï? and Ï?bonds.
A 20.0 ml sample of 0.200 M Hbr solution is titrated with 0.200M of NaOH solution. Calculate the pH after 16 ml of NaOH has been added.
Whats the volume of 1.05 mol of benzene at 20.7 C? The density of benzene of 0.879 g/mL.
Determine delta H of this reaction (kJ/mol H 2 SO 4 ) - When 24.4 mL of 0.500M sulphuric acid ,H 2 SO 4 is combined to 24.4ml of 1.00M potassium hydroxide KOH in a coffee cup calorimeter
3AgNO3 + Na3PO4 --> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced?
Calculate how the amount of AgCl(s )will change when the equilibrium is disturbed by Adding AgNO 3
calculate the concentration of an NaOH solution if 25.0ml of the solution is needed to neutralize 17.5ml of a 0.419M HCL solution
Calculate the heat of enthalpy for the reaction: PCl5(g) → PCl3(g) + Cl2(g)
Calculate how many such photons are emitted per second by a 80.0-W incandescent lightbulb if we Assume that the light has an average wavelength = 510.0 nm, .
Calculate the standard heat of reaction, or , for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero.
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