Starting with the definition of osmotic pressure Pi = -RT/V_ml * ln * (p_so*ln)/(p_1)^0 Derive the semi-empirical expression for a dilute real solution Pi/C' = RT/M_2 + bC' Where C' is the concentration expressed in (g solute)/(dm3 solution) and b is known as the interaction constant. Then use the semiempirical formu
Carbon dioxide obeys the reduced Bethelot equation reasonably well (attached is the equation). Given Tc = 304.3K and Pc = 73.0 atm, calculate the fugacity of carbon dioxide at 150 degrees C and 50 atm.
I think the ideal gas law does not apply in this following problem because this problem is addressing a liquid. then how do i think through and do this problem? Calculate the free energy of mixing when 1 mole of liquid A is mixed with 4 moles of liquid B at 25 degrees C to form an ideal solution. What is the change in chemic
At pH 6.00 and pE 2.60, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3? Hint: Use the Nernst equation and the Ksp for the solubility of solid iron (III) hydroxide. I would like to know how to set up the Nernst equation and where it is appropriate to plug in the value and how it correlates with the c
What is the theoretical yield of vanadium that can be produced by the reaction of 40.0 g of V2O5 with 40.0 g of calcium based on the following chemical reaction. V2O5(s) + 5Ca(l) --> 2V(l) + 5CaO(s)
The silver iodine bond energy is approx 255kJ/mol. (AgI is one of the active components in photography sunglasses). What is the longest wavelength of light capable of breaking the bond in silver iodine?
1. The respiratory rate of a person is 20 breathes per minute. If every average breath is about 310cm^3 of air at 22C and 740mmHG, what volume of air in cubic meters and corrected to standard temperature and pressure conditions does a person breathe in one day?
You have just finished fermenting a wine and the pH = 3.7. You need 2mg/L "molecular" SO2 to protect the wine. What level of free SO2 do you have to add to achieve the level of the molecular form desired? You can ignore the sulfite(SO3) form at this pH as the levels will be negligible. Perform by calculation and give answer
Suppose your balloon has a radius of 3 m and that it is a spere when inflated. a.) how much H is needed to inflate it to a pressure of 1 atm at an ambient T of 25 celsius @ sea level? b.) what mass can the balloon lift @sea level, where the density of air is 1.22 kg m^-3 ? c.) what would be the payload if helium were used ins
The following reaction occurs at 1600 deg. C. Br2(g) <---> 2Br(g) When 1.05 moles of Br2 are put in a 0.980 L flask, 1.20 percent of the Br2 undergoes dissociation. Calculate the equilibrium constant Kc for the reaction.
NH4Cl(s) f/r NH3(g)+HCl(g) Calculate equilibrium constant Kp if the total pressure is 2.9 atm at this temperature.
The equilibrium constant Kc for the reaction is 54.3 at 430 deg C H2(g)+I2(g) f/r 2HI(g) At the start of the reaction there are 0.714 mole of H2, 0.984 mole of I2, and 0.886 mole of HI in a 1.90 L reaction chamber. Calculate concentrations of the gases at equilibrium: [H2]= [I2]= [HI]=
Given the amount of reactant in grams in a container at a temperature and amount produced in moles, calculate Kc: A quantity of 6.75 g of SO2Cl2 place in a 2.00 L flask. At 648 K, there is 0.0345 mol of SO2 present. Calculate Kc for the reaction. SO2Cl2(g) f/r SO2(g)+Cl(g)
The heterogeneous equilibrium process C(s) + CO2(g) f/r 2 CO(g) At 700 deg. C. the total pressure in this system is 4.71 atem. The equilibrium constant is 1.52, calculate the equilibrium partial pressures of CO2 and CO. PCO2=? atm PCO=? atm
The following equilibrium process at 686 deg. C. CO2(g) + H2(g) f/r CO(g) + H20 (g) The equilibrium concentration of the reacting species are [CO]=0.050 M, [H2]=0.045 M, [CO2]=0.086 M, and [H2O]=0.040 M. I calculate Kc for the reaction at 686 deg. C. = 0.52 If CO2 is added to increase concentration ot 0.55 mol/L, what wi
This is problem having troubles with. Determined at 1123 K. C(s)+Co2(g) >2CO(g) K'p=1.3 x 10^14 < CO(g) + Cl2(g)>COCl2(g) K"p=6.0 x 10^-3 Equilibrium constat expression Kp for reaction C(s) + CO2(g)+2Cl2(g)>2COCl2(g) Kp=(PCOCL2)^2/((PCl2)^2 x (PCO2)) Calculate the equilibrium constant at 1123K
Use the data attached to estimate the value of K_eff at very high total pressure and the value of K_1 mol^-1 s^-1.
1.What data is collected in a titration? 2.How would I be able to find what the volume of 0.10M HCl should be needed to titrate .136 g Na2CO3 according to the reaction equation: Na2CO3(aqueous) +2HCl(aqueous)  2NaCl(aqueous) + H2O(liquid) + CO2(gas) 3.How would I determine the density of a solid using water di
1) If ZnCO3 (solid) is insoluble in water, but dissolves in excess 6.0 molar HCl (aqueous), how would pull out the proper equation that would support it? 2) How would you go about finding how many mL of 2.00 molar NaOH (Aqueous) solution are required to neutralize 1.858 g of KHC8H4O4 (it's formula weight being 204.22)? An
A reaction occurs for each of the following below. How do you differentiate between the different driving forces? (a driving force can either be the transfer of electrons; the formation of a precipitate, etc.) 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2 KOH(aq) + HF(aq) --> KF(aq) + H2O(l) NaF(aq) + HCl(aq) --> NaCl(aq) + HF(
I solved part a of this problem easily. The rest of this problem has me stumped. I already have the solutions to these problems, but it's arriving at these solutions that has made me pull my hair out!
A person ate 0.50 pound of cheese (an energy intake of 4000kJ). Suppose that none of the energy was stored in the body. What mass (in grams) of water would be needed to perspire in order to maintain his original temperature? (It takes 44.0 kJ to vaporize i mol of water).
Calculate the heat of decomposition for this process at constant pressure and 25o: CaCO3(s) ---> CaO(s) + CO2(g)
Hi, I need some assistance with the following questions: 1. Calculate the molar solubility of AgCl in a 1.00L solution containing 10.0g of dissolved CaCl2. 2. Compare the molar solubility of Mg(OH)2 in water and in a solution buffered at a pH of 9.0.
I am having some trouble with this question. Question: a) A copper refining cell is operating with an electrolyte which contains 0.05 m Sn2+. At what concentration of Cu2+ will the tin start to plate out in preference to the copper? The cell temperature is 40 degrees Celsius. b) A polarization potential arises from a con
The chemical reaction representing the soluability of AGBr is: AgBr (right and left arrow) Ag^+ +Br^- This can be written as: AgBr+ 1e^- (right arrow) Ag + Br^- Eo=.071 V Ag (right arrow) Ag^+ +1e^- Eo=-.800 Using this data, what is the solubility product constant, Ksp, of AgBr @ 25 Celsius?
Calculate the cell potential @ T=25 Celsius assuming ideal solutions Fe | Fe^2+ (1.43 *10^-5) || Fe^2+ (5.00*10^-4M) | Fe The double line represents a salt bridge. Please provide a detailed description of what they are talking about here.
What is total charge of the neptunium nucleus? (93 electrons MW=237.0482)
Consider the reaction 2NO(g) + O2 ---> 2NO2 (g). The following mechanism has been proposed to explain the experimental rate law: 1. 2NO --> and <-- N2O2 (fast) 2. O2 + N2O2 --> 2NO2 (slow) Give the rate law for the proposed mechanism. If necessary, use the pre-equilibrium assumption to determine an expression for the co
What is the value of the rate constant at 380 celsius given that the rate constant at 80 celsius is 7.2*10^-2s^-1