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The Ka of a monoprotic weak acid is 6.08 × 10-3. What is the percent ionization of a 0.187 M solution of this acid?
identify the absorptions associated witht he carbonyl group and with the aromatic rings
Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of gas is 8.70 l at 895 torr and 25 Celsius. How many grams of Cl2 are in the sample? what volume will the..
Nitrogen gas has a Henry's law constant k = 6.3 × 10-4 M/atm at 25°C. The "bends" in divers results from bubbles of N2(g) being rapidly released from body fluids when a diver ascends to the surface too quickly.
what is the molar mass of the solute? The boiling point elevation constant for water is .512 C/m.
Attractive intermolecular forces exist between the molecules in the gas. The effect of these attractive intermolecular forces in a real gas is to
A gaseous sample of this element is bombarded by photons of various energies (in these same units). Match each photon to the result of its absorption (or lack thereof) by an n=1 electron.
The overall Kf for complex ion Ag(NH3_x+ is 1.7 x 10^7. The Ksp for AgI is 1.5 x 10^-16. What is the molar solubilitiy of AgI in a solution that is 2.0 M in NH3?
Find the molar mass of a gas using the combined gas law if 950. mL of the gas collected over water at 750.0 mm Hg and 21.oC has a mass of 0.905 g
You need to dissolve CaCl2 in water to make a mixture that is 31.5% calcium chloride by mass. If the total mass of the mixture is 380.6 g, what masses of CaCl2 and water should be used
Ideal gas law and meteorological balloon, Balloons are still used to deploy sensors that monitor meteorological phenomena and the chemistry of the atmosphere. It is possible to investigate some of the technicalities of ballooning by using the perf..
For 100 g mol of a gas mixture of 75 mol % CH4 and 25% H2, calculate the total heat of combustion of the mixture at 298 K and 101.32 kPa, assuming that combustion is complete.
derive an euation relating the temperature to the velocity of the gas.if nitrogen at 150 degree celcius flows past one section of the tube at a velocity of 2.5 metre/second,what is its temperature at another section where its velocity is 50 m/s
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