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A solution consists of 10g of liquid X (MW:50) and 9g of liquid Y (MW:30). The vapor pressures of pure X and Y are 40 and 70 mmHg, respectively, at 20°C. What are Nx and Ny (N = mole fraction)? What is the partial pressure of X over the solution at 20°C?
What is the structural formula of the product in the following alkene addition reaction; CH3-CH=CH2+H2O and H2SO4
Henry's law predicts a simple relationship between solubility and pressure. If the solubility of oxygen gas
What reagents would you recommend and what mass of each one would you use to match the concentrations of Na+, Cl-, Mg2+, Ca2+ and SO42- given in the table above?
acids how many have (i) more than one chiral center, (ii) an acidic side-chain, (iii) a sulfur atom in the side-chain?
Identify the major species present (other than water) in aqueous solutions of the following substances. Include aggregation states. Note that this text uses H3O+.
The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 710.0 torr at 64.7°C. What is the mole fraction of methanol in this solution?
What is the total pressure in the vessel just after the reagent gases are added (assume ideal behavior) and what are the mole ratios of the reagent gases in the vessel before the reaction begins?
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.6 mg sample of the material in enough water to make 37.9 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
The coefficient of heat transfer between a pure saturated vapor and a cold surface canbe predicted by the following equation:
A reaction with the activation energy Ea= 219.00 kJ/mol, has a rate constant k = 2.400 x 101 at 565.00 Kelvin. Determine the rate constant when the temperature is changed to 861.00 Kelvin. R = 8.314 J K-1mol-1
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
the half life increased from 2.0 min to 4.0 min at 25C. Calculate the the order of the reaction and the rate constant.
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