science

Gf of H2CO3 = -616.1 KJ/mol
Gf of H20 = -237.1 KJ/mol
Gf of CO2 = - 394.4 KJ/mol
3.
A. Carbon dioxide dissolves in water to form carbonic acid. Estimate the thermodynamic equilibrium constant for this reaction using the ΔGf° values shown here.
B. Carbonic acid then ionizes in water (Ka1 = 4.5× 10-7). Ignoring Ka2, estimate K for the overall process by which CO2 and H2O form H and HCO3-.
C. What is the pressure of CO2 in equilibrium with carbonated water at 25 °C and pH = 4.57?

  1. 👍 0
  2. 👎 0
  3. 👁 456

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Predict whether the following reactions will be exothermic or endothermic A) N2(g)+ 3H2(g) --> 2NH3(g) B) S(g) +O2(g) ---> SO2(g) C) 2H2O(g) ---->2H2(g) + O2(g) D) 2F(g) +F2(g) Bond H-H 432 kj/mol N-N(triple bond) 942 kj/mol O=O

  2. Chemistry II

    C4H4 (g) + 2 H2 (g) --> C4H8 (g) Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of

  3. ap chem

    calculate the lattice enthalpy of potassium fluoride from the following data: enthalpy of formation of K(g): +89 kJ · mol−1 first ionization energy of K(g): +418 kJ · mol−1 enthalpy of formation of F(g): +79 kJ · mol−1

  4. Chemistry

    Which of the reactions are spontaneous (favorable)? a. 2H2O(g)⟶2H2(g)+O2(g) Δ𝐺=457 kJ/mol b. CH4(g)+2O2(g)⟶CO2(g)+2H2O(l) Δ𝐺=−820 kJ/mol c. 2Mg(s)+O2(g)⟶2MgO(s) Δ𝐺=−1137 kJ/mol d. C(s)+H2O(l)⟶CO(g)+H2(g)

  1. Chemistry

    Please help! Calculate the standard change in enthalpy, ΔH°rxn, for the decomposition of calcium carbonate to calcium oxide CaCO3 (s) → CaO (s) + CO2 (g) Given that: ΔH°f CaCO3 (s) = -1206.9 kJ/mol ΔH°f CaO (s) = -635.1

  2. Chemistry

    Nitroglycerin, C3H5(NO3)3, a solid explosive compound, decomposes to carbon dioxide, water vapor, nitrogen, and oxygen. (a) Calculate the total volume of gases when collected at 1.2 atm and 25 degrees Celsius from 2.6*10^2 g of

  3. chemistry

    last check: (c) A wine cooler contains 4.5% ethanol by mass. Assuming that only the alcohol burns in oxygen, how many grams of wine cooler need to be burned to produce 3.12 L of CO2 (d = 1.80 g/L at 25°C, 1 atm pressure) at the

  4. Chemistry

    Are my answers correct? C6H14 + 19/2 O2 -> 6 CO2 + 7H2O enthalpy change = -4163 kJ a) if 0.537 mol of carbon dioxide is produced in the reaction represented by the equation above, how much heat is released by the reaction?

  1. ap chem

    The heat of combustion of propane is -2,220.1 kJ/mol calculate the heat of formation, delta Hf, of propane given that delta Hf of H20= -285.3 kJ/mol and delta Hf of CO2 = -393.5 kJ/mol

  2. Chemistry

    A solution is made by dissolving 0.100 mol of NaCl in 5.35 mol of water. What is the mass % of NaCl? So far, I have determined molecular weight of NaCl (58.44 g/mol) multiplied by 0.100 mol = 5.844g NaCl, and mw of H2O (18 g/mol)

  3. CHEMISTRY

    Methanol (CH4O0, which is used as a fuel in high performance racing cars, burns in the presence of )2 to form CO2 and H2O. The molar masses for all substances are given under the balanced equation. 2 Ch4O9l) + 3 O2(g)-->2 CO2(g)+

  4. chemistry

    Fe2O3(s) + 3 CO(g) −→ 2 Fe(s) + 3 CO2(g) Given: 2 Fe2O3(s) −→ 4 Fe(s) + 3 O2(g) ∆H = 1616.6 kJ/mol CO(g) −→ C(s) + 1 2 O2(g) ∆H = 110.5 kJ/mol C(s) + O2(g) −→ CO2(g) ∆H = −393.5 kJ/mol Answer in units of

You can view more similar questions or ask a new question.