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A sample of propane (C3H8) is placed in a closedvessel together with an amount of O2 that is 3.00 times the amount needed to completelyoxidize the propane to CO2 and H2O at constant temperature. Calculate the mole fraction of each component in the resulting mixture after oxidation assuming that the H2O ispresent as a gas.
In a 0.400 mol/kg aqueous solution of sucrose, the molarity of sucrose is 0.282 mol/dm3 and the density of water is 0.998 g/cm3 at 20oC and 1 atm. Estimate the osmotic pressure of this solution.
sample of KHP required 33.86 mL of sodium hydroxide, what was the molarity of the sodium hydroxide solution?
Normalize the total energy eigenfunctions for the three-dimensional box in the intervals 0 ? x ? a, 0 ? y ? b, 0 ? z ? c.
A 498 mL sample of laughing gas, N2O, is at 30 oC and 414 torr pressure. (a) How many gas molecules are present? (b) How many atoms are there
solution from a rebuilt auto baattery. How many milliliters of 1.4M NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
Calculate its standard heat of combustion in kilojoules. Methyl tert-butyl ether (MTBE), , a gasoline additive used to boost octane ratings, has = -313.6.
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
An unknown had the chemical formula C4H10O. It showed a positive chromic acid test, a positive lucas test in 5 minutes, and a positive iodoform test. What is the structure of the unknown compound
Sometimes as a solute dissolves in a solvent, the solute molecules dissociate to some extent; sometimes solute molecules associate to form larger molecular units, such as dimers and trimers
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 74% of the Mg2+ be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9* 10-12.]
Water vapor will react reversibly with methane (CH4) to produce carbon monoxide and hydrogen gas. The equilibrium, with a Kc = 0.26, is established at 9270C in a 0.32L flask which contains 0.26mol CO, 0.091mol H2, and 0.041mol CH4. What is the con..
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