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- Determine the values of Kc that correspond to the following values of Kp. 1.) SO2CI2(g)—›‹—SO2(g)+CI2(g) Kp=2.9×10^-2 at 303K 2.) 2 NO2(g)—›‹— 2 NO(g)+O2(g) Kp=0.275 at 700k 3.) CO(g)+CI2(g)—›‹—COCI2(g) Kp=22.5For which pair of compounds can the Ksp values be directly compared to determine which compound is more soluble in water? O Al2(SO4)3 and Na3PO4 O Al(OH)3 and Ca(OH)2 O Ca3(PO4)2 and Ca(OH)2 O Al(OH)3 and Na3PO4 O Ca3(PO4)2 and CaSO4True or False: Carboxylic acids containing six or more carbon atoms per molecule are more soluble in 3 M sodiumaqueous hydroxide than in dichloromethane.
- 18)What is the correct dementional analysis set up for converting 13g to hg (100g=1hg)Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D2) of hexanoic acid in water with respect to CCl4.A chemist is asked to separate the components of a mixture composed of 1.00 g each of the two compounds shown below. The chemist has access to the following bases: 10% aqueous NaHCO3 and 10% aqueous NaOH. Which base and how many mLs of the base (i.e., the minimum amount) are needed to completely separate these compounds from each other by liquid-liquid extraction?
- 3. The following data were obtained for the osmotic pressures of the nitrocellulose in acetone at 20 °C. (1 cmH2O = 9.62x10 atm) w (g/L) I1 (emH2O) | Il/w (cmH;O-L/g) 3.66 8.38 2.56 8.00 0.56 1.16 0.28 0.62 0.50 0.53 0.70 0.95 Calculate the limiting value II/w and hence the best estimate of the molecular wright. 4. A dilute aqueous sugar solution of total weight 1000 g contained 0.5 g of sugar(I) (M: 500 g/mol) and 0.3 g of sugar (II) (unknown M). The osmotic pressure of this solution was found to be 49.6 mmHg (across a suitable membrane separating it from pure water) at 25 °C. Calculate the molecular weight M of sugar (II) and give its molecular formula.Explain the role of phenolphthalein in the standardization of NaOH with KHPis Cyclohexane soluble in CH2Cl2, water, NaOH, or H2SO4?
- 3. It was found out that 2.0 kg of sucrose can dissolve per liter of water at 25°C. How many tablespoons of water is needed to dissolve 54 g of sucrose? 54 g of sueroce 1L water 1000 mL water 1し water 1 kg sucrose wat er 1000 Suerose 14-79mbuaterCalculate the Ksp for each of the salts whose solubility is listed below. AgC2H302 = 2.02 g/100 mLWrite the expression for Keq for the following reactions. In each case indicate whether the reaction is homogeneous or heterogeneous.(a) N2(g) + 3 H2(g) 2 NH3(g) Keq = PNH32 / (PN2 PH23) Keq = (PN2) (3 PH2) / 2 PNH3 Keq = PN2 PH23 / PNH32 Keq = 2 PNH3 / ((PN2) (3 PH2)) homogeneous or heterogeneous. (b) 4 HCl(g) + O2(g) 2 H2O(l) + 2 Cl2(g) Keq = PHCl4 PO2 / PCl22 Keq = 2 PCl2 / (4 PHCl PO2) Keq = 4 PHCl PO2 / 2 PCl2 Keq = PCl22 / (PHCl4 PO2)