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Sodium sulfate is gradually added to a solution containing 0.0500 M Ca2 (aq) and 0.0390 M Ag (aq). Explain what will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate?
Explain what percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective precipitation?
Suppose a buffer solution is made from formic and (HCHO2) and sodium formate (NaCHO2). What is the net ionic equation for the reaction that occurs when a small amount of hydrochloric acid is added to the buffer?
After the addition of a large excess of acid (in comparison with the acid volume needed to reach the equivalence point) D) tell how many millileters of acid are required to reach the equivalence point
What mass of H2 forms if 12 grams of Zn reacts with 7 grams of HCl?
compare the ph values in the dilution for the strong acidhcl and the weak acidacetic acid. do the ph values increase at
the color to change after 2.00 mL of NaOH were added to the flask, calculate the concentration of 2-chloro-2-methylpropane present in solution at t = 106 s.
Which of the following substances would be most efficient per unit mass at melting snow from sidewalks and roads: glucose, sodium chloride, ethylene glycol, or calcium nitrate. Your explanation should include possible environmental impact.
If a 0.140 mM solution of MnO41- has an absorbance of 0.210 at 525 nm in a 1.000 cm cell. What is the concentration of a MnO41- solution that has absorbance of 0.620 in the same cell at that wavelength
when the initial concentration of reactant is 0.71 m a second-order reaction has a half-life of 18 s then determines
Calculate the pH you would expect to measure if 20.0 mL of 0.5 M acetic acid were mixed with 10.0 mL of 0.5 M sodium acetate.
Ammonia gas decomposes according to the equation: If 15.0 L of nitrogen is formed at STP, how many liters of hydrogen will be produced (also measured at STP)
A piece of magnesium with a mass of .2 grams is added to 50mL of 1 molarity of HCL at a temperature of 28 degrees celcius. When the magnesium disolves the solution reache a temperature 46 degrees celcius.
Write the nuclear equation for the alpha decay ( production of radioactive decay that may be considered radioactive waste products by the useful production of nuclear energy ) of each nuclide that are products of a nuclear power plant Rn-222, T..
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