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How many microliters of 1.000 M NaOH solution must be added to 25.00 mL of a 0.1000 M solution of lactic acid to produce a buffer with pH = 3.80?
Suppose that a 10 mL sample of a solution is to be tested for Cl- ion by addition of 1 drop (0.2 mL) of 0.11 M AgNO3.What is the minimum number of grams of Cl- that must be present in order for AgCl(s) to form?
The solubility product for Zn(OH)2 is 3e-16. The formation constant for the hydroxo complex, Zn(OH)4 2- is 4.6e17. What is the minimum concentration of OH- required to dissolve 1.2e-2 mol of Zn(OH)2 in a liter of solution?
A sample of 1.00 mol of perfect gas molecules, originally at 1.00 atm, with a molar heat capacity at constant pressure of 7/2 R is put through the following cycle:
What is an alternative way to draw this molecule? (include the resulting formal charge on the Nitrogen, please)
A 2.42-L flask is filled with propane gas (C3H8), at 1.00 atm and -13.0°C. What is the mass of the propane in the flask.
If 8.6 L of H2 reacted with 4.3L of O2 at STP, what is the volume of the gaseous water collected (assuming that none of it condenses)? 2H2(g) + O2(g) -> 2H2O(g)
Styrene is produced by catalytic dehydrogenation of ethylbenzene at high temperature in the presence of superheated steam. A.) Given the following data, what is the delta Hrxn, delta Grxn and delta Srxn at 298 K
Find the pH and volume (mL) of 0.367 M HNO3 neded to reach the equivalence point(s) in titrations of
Element 107 was made by bombarding Bismuth-209 with Chromium-54. One product is a neutron, what is the balanced equation?
As proteins themselves, enzymes are comprised of amino acids. The protease from the human immunodeficiency virus 1 (HIV-1) contains two aspartate (Asp) amino acid residues, referred to here as Asp-1 and Asp-2, that are essential for catalysis. The..
A steel container with a volume of 500.0 mL is evacuated, and 25.0 g of CaCO3 is added. The Container and contents are then heated to 1500 K, cuasing the CaCO3 to decomposed completely
a chemist wants to prepare a solution with a freezing point of 22.0degc and has 100.00 g of glycerol on hand. what mass
A balloon is partly inflated with 480 liters of helium at sea level where the atmospheric pressure is 996 mbar.The balloon ascends to a altitude of 3000 meters.
despite its name, is at least mildly toxic. The properly balanced mixture reacts to form K2CO3, N2, H2O and CO2. Write the balanced reaction and determine the mass of kno3 that should be mixed with 1.4 g of sugar to produce optimally balanced rock..
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