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If an unknown gas Q effuses 1.35 times as fast under the same conditions as Xe gas. Define what is the molar mass (g/mol) of Q?
Calculate the equilibrium concentration of each compound if 3.10 moles of COBr2 are placed in a 3.00 liter flask at a certain temperature. Kc = 0.140 for the reaction at this temperature.
compute the volume of 3m naohaqaqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in
How many milliliters of 12.6 M HCl solution are needed to obtain 0.105 mol of HCl?
an object made of aluminum has a mass of 8.37 gram. when it was placed in a graduate cylinder containing 20.0 milliter of water, the water level rose to 23.1 milliter. calculate the density and specific gravity of the object.
Calculate the solubility of N2 gas in water if the pressure of N2 gas over the solution is 6.00atm. Express the answer numerically to three significant figures.
The decomposition of a compound, A, to form B + C is known to be a first order reaction. If the half-life of the reaction is 1.26 minutes at 65 °C, what is the value in min-1 of the rate constant for the reaction at this temperature
Predict the intensities of the peaks at masses 57 and 114 in the spectrum of 2,2,3,3-tetramethylbutane. Support your answer with its corresponding fragmentation reaction.
which one of the following would furnish the highest yield of a methyl ether on reaction with naoch3 under conditions of williamson synthesis?
A gas is expanded in a cylinder from 2.00 L to 12.0 L against an external pressure of 1.80 atm. At the same time, it absorbs 2.56 x 103 J of heat from the surroundings. Calculate ?E of the gas in J. (1 L•atm = 101.3 J)
Use the standard reduction potentials to find the equilibrium constant for each of the following reactions at 25°C.(a) Br2(l) + 2 I ?(aq) 2 Br?(aq) + I2(s)
What is the uncertainty of the position of the bacterium. Express your answer numerically in meters.
Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. What would the products of the reaction be
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