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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?
A 1M soultion of sodium benzoate has a ph of 9.11. what is the value of Ka that would be calculated for benzoic acid based upon this measurement
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M HCN (Ka = 4.9 × 10^-10) solution.
would the equilibrium constant for the formation of Cu(OH)2 (s) be greater or lesser than the equilibrium constant for the formation of Cu(NH3)4^2+ (aq)? Please explain your reasoning.
Calculate the concentration of all the species, ions, and molecules, and the pH of the following solutions. All solutions have a total volume
At what radius in the H atom does the radial distribution function of the ground state have a) 50 percent b) 75 percent of its maximum value
A current of 5.07 A is passed through a Sn(NO3)2 solution for 1.20 hours. How much tin is plated out of the solution
write an equation for which component of the phosphate buffer (H2PO4-/ HPO4^2-) reacts when HCl is added. Do the same for NaOH.
Question- Assume that the molar freezing point depression constant of water is 1.86C kg/mol and that the freezing point of water is 0.00C Part a. Complete the following reaction showing what ions calcium chloride will produce upon dissolving in wate..
Calculate the maximum mass of pure ethanol that can be vaporized in 10 min from a beaker left in strong sunshine, assuming that the surface area of the ethanol to be 50 cm^2
What are the similarities between enzyme catalyzed DNA synthesis and solid phase DNA synthesis
When the reaction 2 H2S g ~ 2H2 + S2 is carried out at 1065 degrees celcius, Kp = 0.012. Starting with pure H2S at 1065degrees, what must the initial pressure of H2S be if the equilbrated mixture at this temperature is to contain 0.250 atm of H2 (..
Explain and show the Chemical properties of tihydric alcohol
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