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Many scientists are using 3.7 (mg per kg bw per d)-1 as the current value for the slope of the dose-response curve for inorganic arsenic and excess lifetime risk of lung cancer. What dose in (µg per kg bw per d) corresponds to an excess lifetime risk of 1 in 2500?
What type of forces allow oil to mix with another nonpolar liquid?
Explain why carbon tetra-chloride does not dissolve in water?
How would the presence of a double or triple bond help to determine the geometric shape of a molecule?
Why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminoophen to the Hirsch funnel
Calculate the specific rotation of a substance that is dissolved in a solvent (0.4 g/mL) and that has an observed rotation of -10 degrees as determined with a 0.5-dm cell.
What is the equilibrium partial pressure of water vapor in the air at 25 degrees Celsius, and how much water remains in the bucket after equilibrium is established
A metallic object to be plated in copper is placed in a solution of CuSO4. What mass of copper will be deposited on the object if a current of 0.22 amps flows through the cell for 1.5 hours
Calculate the wavelength () of the light in nanometers () corresponding to the energy change () value of this transition. You can use the following values for your calculations
A gas expands and does P-V work on the surroundings equal to 261 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
Why does the ATP molecule have such great potential energy which, when released by the hydrolysis of a phosphate, gives off such a large amount of energy.
Determine the density of N2O(g) at a pressure and temperature of 0.7982 atm and 304.5 K, respectively.
Find the number of faradays passed through the circuit. What mass of Ag is deposited at the cathode in the second cell. What mass of Fe(NO3)3 might be recovered from the third cell solution
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