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The equilibrium constant for a reaction 2SO2 + O2 <------> 2SO3 is 2.8 x 10^2 at a certain temperature. If [ SO2 ]^2 = 0.0124M and [ O2 ] = 0.031M, what is [SO2]
The contents of the tank are transferred without loss to an evacuated 55 L tank in scold room where the temperature is 4 degree C . What is the pressure in the tank ?
What is the volume in mL of 0.762 M HCl(aq) needed to reach halfway to the equivalence (stoichiometric) point in the titration of 41.9 mL of 0.457 M N2H4(aq) (Kb = 1.7 x 10-6).
What is the concentration (mol/L) of the chromate ion in a saturated solution of silver chromate
boron has two stable isotopes with masses of 10.01294 u and 11.00931 u. the average molar mass of boron is 10.81 u.
What is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 357 Torr at 25C vapor pressures at 25 C= pure pentane is equal to 511 torr, pure hexane equals 150 torr.
What polypeptide would be synthesized from the following template strand of DNA:3' CGG AGA CGG ACG 5'
If cadmium metal and the Fe(III) ion are mixed in aqueous solution, a solution containing Cd(II) and Fe(II) results. The balanced equation for this process is
A syringe containing 1.42 mL of oxygen gas is cooled from 99.7 C to 0.6 C. What is the final volume of oxygen gas
Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C6H5COOH) and 0.15 M sodium benzoate (C6H5COONa). Ka= 6.5 x 10^-5 for benzoic acid. Please show your work for how you got this.
which stting material in the reaction if the limiting reactant and which material is present in excess? show
What is the PH of the buffer that results when 12.0 g of NaH2PO4 and 8.00 g of Na2HPO4 are diluted with water to a volume of .50 L? (Ka of H2PO4=6.2*10^-8, the molar masses are 120.0 g/mol and 142. mol respectively.
A 52.0mL volume of 0.35M CH3COOH (Ka=1.8x10^-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 31.0mL of NaOH.
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