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a large oil spill that resulted from the 1989 shipwreck of the exxon valdez cause considerable damage to alaska's wildlife. do you think a comparable spill of a water-insoluble liquid that has a density of 1.20 g/mL would have been as harmful to waterfowl and aquatic mammals, assuming that the toxicity of a liquid was comparable to that of petroleum?
Calculate how many such photons are emitted per second by a 80.0-W incandescent lightbulb if we Assume that the light has an average wavelength = 510.0 nm, .
an auto technician spills 85 ml of 2.6 m h2so4 solution from a rebuilt auto battery. how many milliliters of 2.5 m
What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
Which of the following solutions has the highest osmotic pressure? A. 1.0 M K3PO4 B. 2.0 M LiBr C. 4.0 M C6H12)6 D. all have the same osmotic pressure
Assume that the reaction is second order in CV. If [CVo]=1.35x10-5M and the value of k = 0.096 l/mol-min, what is the half-life of the reaction.
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
1. determine how many grams of o2 are present when mass of a sample of earths crust is of 328rm gg ? note down
Aminabhavi et al. [T. M. Aminabhavi, V. B. Patil, M. I. Aralaguppi, J. D. Ortego and K. C. Hansen, J. Chem. Eng. Data 41, 526 (1996)] examined mixtures of cyclohexane with various long-chain alkanes.
Calculate the number of moles of an ideal gas if it has a pressure of 1.02 atm, a volume of 2.76 L, and a temperature of 222 oC. Use R = 0.0821 L-atm/mol-K for the value of the gas constant.
2C8H18(l) + 25O2(g) => 16CO2(g) + 18H2O(l) ?H = -11,200. kJ Standard enthalpies of formation, ?Hf: CO2(g), -393.5 kJ/mol; H2O(l), -285.8 kJ/mol Use the above data to calculate the standard enthalpy of formation of octane, C8H18(l).
a portable water heater transfers 225 watts of power to 5.5 l of water. how much time will it take the water heater to
If you want to remove 50% of the moisture in the air at a constant pressure of 100 kPa, to what temperature should you cool the air.
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