chemistry

posted by .

A sample containing 0.0500mol of Fe2(SO4)3 is dissolved in enough water to make 1.00L of solution. This solution contains hydrated SO4 2- and Fe(H2O)6 3+ ions. The latter behaves as an acid:
Fe(H2O)6 3+ --> Fe(H2O)5OH 2+ + H+

a) Calculate the expected osmotic pressure of this solution at 250†2C if the above dissociation is neglibile.
b) The actual osmotic pressure of the solution is 6.73 atm at 250†2C. Calculate Ka for the dissociation reaction of Fe(H2O)6 3+.

Thanks in advance!

Formulas to consider:
Osmotic pressure = MRT
R = 0.08206 --> constant
T = 298 K

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Calculate how many moles of productwould be produced if .310 mol of the first reactant were to react completely. (a) CO2 + 4 H2 ¨ CH4 + 2 H2O CH4 _____ mol H2O _____ mol (b) C3H8 + 5 O2 ¨ 4 H2O + 3 CO2 H2O _____ mol CO2 _____ …
  2. college chemistry

    A 1.875 g sample of pyrazine was dissolved in 25.00g of water, producing a solution that freezes at -1.55 C. Assume the solution behaves ideally. Kf(H2O)=1.86 C/molality. What is the experimental molecular weight of pyrazine?
  3. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?
  4. chemistry

    A sample of aluminum sulfate 18-hydrate, Al2(SO4)3 · 18 H2O, containing 157.0 mg is dissolved in 1.000 L of solution. Calculate (a) molarity of Al2(SO4)3 (b) molarity of SO42- (c) molality of Al2(SO4)3, assuming that the density of …
  5. Chemistry

    when 25.0 mL of a solution containing both Fe2+ and Fe3+ ions is titrated with 23.0 mL of 0.0200 M KMnO4 (in dilute sulfuric acid). As a result, all of the Fe2+ ions are oxidized to Fe3+ ions. Next, the solution is treated with Zn …
  6. Chemistry

    A)How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
  7. Chemistry....

    Wouldn't it be 3*0.234 instead of 2* 0.234?
  8. Chemistry

    There's reaction involving gas: Fe + H2SO4 -> Fe2(SO4)3 + H2O + SO2 How Fe2(SO4)3 is occur?
  9. chemistry

    Determine the limiting reactant for this reaction if 3.027 grams of Aluminum are reacted with 60.00 mL of a solution that is 6 M KOH. Determine the amount of KAl(SO4)2•12 H2O that can be produced from this reaction. Molar mass Alum …
  10. Chemistry

    A 2.80-g sample of haematite ore containing Fe3+ ions was dissolved in a concentrated acid and the solution was diluted to 250 mL. A 25.0 mL aliquot was reduced with Sn2+ to form a solution of Fe2+ ions. This solution of Fe2+ ions …

More Similar Questions