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In solid carbon monoxide, each CO molecule has two possible orientations: CO or OC. Assuming that these orientations are completely random (not quite true but close), calculate the residual entropy of a mole of carbon monoxide.
Calculate the hydronium concentration for a solution prepared by dissolving 0.15 mol of benzoic acid (C6H5COOH) and 0.30 mol of sodium benzoate (C6H5COONa) in 1.00 L of solution. (Ka of C6H5COOH = 6.5 x 10-5)
Determine the molar mass of Freon-11 gas if a sample weighing 0.597 g occupies 100 cm3 at 95°C, and 1000 mmHg.
The Henry constant of CO2 in biological fats is 8600torr. Determine concentrations of CO2 in biological fats in micrograms per gram at normal conditions. Presume that air contains 0.035% of CO2 by volume.
Determine the mass of carbon dioxide (in g) produced from the complete combustion of 1.40×10-2 g of C6H10 with excess oxygen.
burning 0.43g of the compound X (only contain C,H,O)in excess oxygen gives 1.10g of CO2 and 0.45g of H2O. what is the empirical formula?
Show two different ways to make methyl propionate, using methanol, propionic acid and other necessary reagents The methanol and propionic acid do not have to both be used in the first step.
How many mL of a 22.5% (v/v) ethanol solution would you need to measure out in order to have 12.5 mL of ethanol. (Molar mass of ethanol is 46.07g/mol
10.00ml of 1.98middot 10-3 moll nascn solutionwere mixed with 10.00ml of 8.07middot 10-4 moll ironiii nitrate solution.
What happened to the fabric strip when it was treated with the Test Identification Stain? How might this dye be used
If the endpoint is surpassed in the back-titration with NaOH, will the reported amount of antacid in the sample be too high or too low?
The temperature changes from 25 degrees C to 29 degrees C. What is the enthalpy (ΔH) of the reaction? (use 4.184 J/g degrees C as the specific heat of water)
A mixture of equal volumes of equimolar solutions of acetic acid and sodium acetate is made in 1 L flask. Calculate the pH of the solution.
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