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Problem: Suppose the incidence of lung cancer was significantly higher in one specific region of Ontario. The soil in this area was tested and found to be very high in uranium. Explain the correlation between lung cancer and uranium rich soil. What steps could residents of this region take to protect themselves?
A jar test has shown the optimum dose of ferric chloride consumes all of the alkalinity. If the amount of ferric chloride that is in excess is 10 mg/L, how much lime (Ca(OH)_2_), in mg/L must be added to neutralize the acid formed
What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.55 and has a freezing point of -2.0 °C.
how many electrons are gained or lost by each sulfur atom. how many electrons are gained or lost by each copper atom
A current of 5.80A passes through a CrNO3(2) soln for 1.70 hours. How much chromium is plated out of the soln
Suppose that 25g of gold is initially at 27 degrees Celsius. What's the final temperature of gold upon absorbing 2.35kJ of heat?
If the theoretical yield for a reaction was 156 grams and I actually made 122 grams of the product, what is my percent yield
A compound has 2 ionizable groups, with pKas of 6.2 and 9.5. A 1.0 M solution of this compound (100 mL total volume) is found to have a pH of 6.8. A biochemist adds 60 mL of 1.0 M HCl to this solution. The solution pH is now:
Suggest a reason that TLC plates that are stored in a highly humid room result in different Rf values than plates that are stored in a dehumidified enviorment. Consider the structure of the layered material on the TLC plates and how that material ..
Complete this equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. HF+H2O=?
a solution of a and b with 30 mole percent of a is in equilibrium with its vapour which contains60 mole percent of a.
What is the concentration of the Na and K if we take 1ml from Na (10ppm) and 1ml from K (10ppm) and dissolved them together with dist. water to be 10 ml mixed soln.?
Using partial orbital diagrams show the orbital hybridization that occurs for the central Carbon that can explain the formation of CH4
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