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describe the preparation of 200 mL of 1.00% (w/v) aqueous CuSO4, from a 0.218 M CuSO4 solution.
Enough of a monoprotic acid is dissolved in water to produce a 0.0166 M solution. The pH of the resulting solution is 2.38. Calculate the Ka for the acid.
At a fixed temperature and pressure, how does the value of the heat of sublimation of a substance compare with that of its heat of deposition?
If the O2 gas present in 7.30 L at STP is changed to a temperature of 17 degrees Celsius and a pressure of 788 Torr, what will be the new volume?
How many mmoles of ammonia would have to be added to 300. mL of 0.10 M cupric sulfate in order to reduce the Cu2+ concentration to 1.0 x 10-8 ? Kf for [Cu(NH3)4]2+ = 5.0 x 1012 Assume no change in volume.
Calculate the partial pressure of carbon dioxide after cooling back down to the initial temperature and the mass percent, the mole fraction, and .
a ballon filled with 0.505 mol of gas contracts reversibly from 1.0 L to 0.10 L at a constant temperature of 5.0 degree celsius. In doing so it loses 1270 J of heat. calculate w, q, and U for the process.
What's the volume of pure hydrogen present in a sample of 55.0 mL of gas saturated with water vapour at 27 °C, if the total pressure is 104.8 kPa?
a)A 10.0 g sample of a mixture of methane (CH4) and ethane (C2H4) reacts with oxygen at 25C and 1 atm to produce carbon dioxide and water (liquid). If the reaction produces 520 kJ of heat, what is the mass percentage of methane in the mixture?
Liquid nitrogen has a density of 0.807 g/mL at -195.8 °C. If 1.00 L of N2(l) is allowed to warm to 25°C at a pressure of 1.0 atm, what volume will the gas occupy.
Calculate the mass of silver chloride required to plate 225 mg of pure silver.
What is the final volume of a balloon that was initially 500.0 mL at 25 °C and was then heated to 50 °C
For the following reaction, calculate the concentration of C(aq) at equilibrium when .135M B solution is alllowed to react with A. A(liquid) + B(aq) ---> C(aq) + D(aq)
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