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A solution which is 0.010 M in both Mg2+ and Mn2+ ions is buffered to pH 9.30 using an aqueous ammonia-ammonium chloride solution. Under these conditions, only one metal hydroxide precipitates. Which metal hydroxide precipitates from solution?
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You have 5 mL of HCl acid (unknown concentration) in a 50 mLvolumetric flask, and bring it up to volume with deionizedwater. Calculate the molarity of the HCl by using the pH equation(pH = -log[H3O+]) , and the dilution ...
What is the ph in a solution made by mixing 60.0ml of 0.0120 Ba(OH)2 with 20.0 mL of 0.0500M acetic acid?
You are required to read the following case study and prepare a Project Feasibility Study and Timeline based on the information contained in the case study. Residential Duplex Development Project You own a real estate ...
An 18g ice cube initially at -10C is dropped into 120 g of water initially at 25C. What is the final temperature of the system after all of the ice has melted? Use the data provided in the reference data sheet and assume ...
Diagonal relationship and anomalous behaviour of the each element of the periodic table
What is the calculation of K c for the following reaction if an initial reaction mixture of 0.600 mole of CO and 1.80 mole of H 2 in a 6.00 liter container forms an equilibrium mixture containing 0.226 mole of H 2 O an ...
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
An electron is ejected from a metal with a velocity 7.78 x10^5 m/s. If the metal has a threshold frequency of 9.90 x1014 Hz, what was the wavelength of the incident photon?
A scuba diver creates a spherical bubble with a radius of 2.5 cm at a depth of 30.0 m where the total pressure (including atmospheric pressure) is 4.00 atm. What is the radius of the bubble when it reaches the surface of ...
What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?
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