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The vapor pressure of pure water at 50.0 °C is 92.5 mm Hg. Calculate the ideal partial pressure of water at this temperature for a mixture of 45.0 g H2O and 55.0 g CH3OH?
The solubility of an ionic compound M2X3 (molar mass = 200. g) is 2.3 multiplied by 10-17 g/L. What is Ksp for the compound?
what volume of a 1.75M Calcium hydroxide solution is needed to completely neutralize 100ml of a 2.25M phosphoric acid solution
a large flask with a volume of 936 ml is evacuated and found to have a mass of 134.66g. it is then filled to a pressure
Calculate the molarity of an NaOh solution if 32.6 ml of this solution is required to neutralize 0.854g of potassium hydrogen phathalate. the molecular weight of potassium hydrogen phathalate is 204.277g/mol
The heat of vaporization of CCl2F2 is 289 J/g. What mass of this substance must evaporate to freeze 165 g of water initially at 15°C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)
compounds like are known as chlorofluorocarbons. these compounds were once widely used as refrigerants but are now
The final partial pressure of NOBr was 2.5 atm after the following equilibrium was established: 2NOBr(g) 2NO(g) + Br2(g). What is the value of Kp
So what have we discovered? What is the elemental identity? Show work in detail please. Displacement - 0.00202 L
Above what temperature, in °C, will the following reaction become spontaneous? Assume free energy, enthalpy, and entropy are not temperature dependent.
Buffering capacity You want a solution that will buffer the addition of either 10 micromoles of acid or 10 micromoles of base. Total buffer concentration is equal to the concentration of the acid plus the concentration of salt of the acid
The saturated vapor pressure of mercury is 0.0020 mmHg at 300 K and the density of air at 300 K is 1.18 g/L. (a) Calculate the concentration of mercury vapor in air in mol/L. (b) What is the number of parts per million (ppm) by mass of mercury in ..
Find the number of faradays passed through the circuit. What mass of Ag is deposited at the cathode in the second cell. What mass of Fe(NO3)3 might be recovered from the third cell solution
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