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Cad4U a local metal processing facility is at present violating its discharge permits for dissolved cadmium, Cd2+. The regulations are based on activity rather than concentration as well as so the savvy ore unethical chief chemist decided to alter the ionic strength to meet the discharge regulations. Currently the Cd2+ is discharged in very low ionic strength water (I<<0.001M). Three salts are available- MgBr2 ($5/mol), MgSO4 ($10/mol), and NaCl ($3/mol). If the Cd2+ activity should be lowered by at least 40%, which salt is the most economical choice?
What must be the concentration of PO43- to just start precipitation of Ag3PO4 in a 0.10M AgNO3 solution?
A metal sample weighing 124.10 g and at a temperature of 99.3 C was placed in 42.87 g of water in a calorimeter at 23.9 C. At equilibrium the temperature of the water and metal was 41.6 C.
the equivalence point occured at 4.67 mL of HCl. Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL
Draw the boundary surface diagrams for the following atomic orbitals, including the appropiate axes. a) 4py
Integrate the expression = 1/V (?V / ?T) at constant pressure, assuming that is independent of temperature. By doing so, obtain an expression for V as a function of T and at constant P.
What is the wavelength in meters of the photon emitted when this highly excited hydrogen atom of hydrogen makes its transition from the n = 9 to the n = 8 state
250.0 ml of 3.0M HCl are added to 400.0 ml of 6M HCl. Assuming that the volumes are additive, what is the final concentration of HCl
Calculated for the molarity of your HCl solution in the same sequence corresponding to the endpoint volumes.
The partial pressure of C2H6 is 0.300 atm and that of CH2F2 is 0.250 atm. What is the total pressure and what is the Mole fraction of C2H6 in the mixture
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which depicts the type of substitution occurs.
How many champagne flutes (holding 180 ml) of Dom Pérignon champagne can a 80 kg person drink in Arizona before reaching the blood alcohol limit for extreme DUI?
Carbonyl fluoride, , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
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