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A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25C. What is the mole fraction of NaCl in this solution? what would be the vapor pressure of this solution at 45C? The vapor presssure of pure water is 23.8 torr at 25C and 71.9 torr at 45C?
1.00 x 10-2 M Mg(NO3)2 and 250 ml of 1.00 x 10-1 M NaF.Calculate the concentrations of Mg2+ and F- at equilibrium with solid MgF2 (Ksp of MgF2 = 6.4 x 10-9).
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced? (L)
Ka for this species is 10-4 and Kb is 10-8. Nonetheless, the Ka and Kb reactions proceed to nearly the same extent when NaHA is dissolved in water.
The CNOG ion is very unstable and is the reason why the mercuric compound is explosive. On the other hand, mercury cyanate, Hg(NCO)2, is not explosive. The cyanate ion (NCOG) is a stable ion. Use resonance structures and electronegativities to exp..
Show that the proton condition for a NH4Cl solution is a linear combination of the mass balance equations and the charge balance equation.
Determine the minimum concentration of KOH Potassium hydroxide is used to precipitate each of the cations from their respective solution.
Compare the heat produced by the complete combustion of 1 mole of methane (CH4) with a mole of water gas (0.50 mole H2 and 0.50 mole CO) under standard conditions
A 128.2mL sample of 0.15M solution of H3PO4 is titrated with 0.18M NaOH. What volume of base must be added to reach the third equivalence point
Given the following data H Cl bond enthalpy = +431 kJ/mol, ?Hf HCl(g) = -92.31 kJ/mol
Provide the name and structure of an herbicide not structurally related to those in this experiment, and indicate how the herbicide works
What is the maximum kinetic energy of an ejected electron if platinum metal is irradiated with 174-nm light? The threshold wavelength for a platinum metal surface is 212 nm.
Number of Moles and Conversion, a) Number of moles of carbon atoms in 0.585 moles C4H10
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