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A solution containing potassium bromide is mixed with one containing lead acetate to form a solution that is 0.013 M in KBr and 0.0035 M in Pb(C2H3O2)2. Will a precipitate form in the mixed solution? If so, identify the precipitate.
ATP is created from ADP and Pi in the mitochondria of most cells. this reaction is thermodynamically endergonic. what directly provides the energy for this reaction to occur
A two-component mixture is analyzed by gas chromatography with flame ionization detection. compound x has a retention time of tr= 11.53 min with N= 16,520 theoretical plates
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in the arm open to the atmosphere
What is the molarity and osmolarity of a 1 liter solution with .2 moles of calcium chloride. How many molecules of chloride are dissolved in solution
The equilibrium constant for the reaction N2(g) + 3H2(g) = 2NH3(g) is Kp=4.34x10^-3 at 300*C. Pure NH3 is placed in a 1.00 L flask and allowed to reach equilibrium at this tempurature. What is the mass of N2 in the equilibrium mixture
if the initial water level in the graduated cylinder is 21.2 ml and the level rises to 27.7 ml after the object is placed in the cylinder, what is the volume of the object?
The volume of water in the calorimeter decreased by 0.16 during the reaction. Calculate the enthalpy of the reaction (in kJ/mol). Show all steps of the calculation
Cadaverine are 9.13 and 10.25. If the ends of these molecules look the same, why do they have different pkas?
When Lewis and Clark came through this area in the early 1800s they were forced to portage around the "Great Falls of the Missouri".
we add 10 ml of 0.1 m naoh to 100 ml of solution containing 0.1 m ch3co2h and 0.1 m ch3co2-. ka 1.8 x 10-5 using the
A 4.50-g sample of LIL at 25.oC dissolves in 25.0 mL of water also at 25.0C. The final equilibrium temperature of the resulting solution is 60.8C. What is the enthalp of solution of LICL expressed in kilojoules per mole?
suppose the pressure inside a pressure cooker reaches 1.3 atm. By using the vapor-pressure table, estimate the temperature at which water will boil in this cooker
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