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What oh would allow for best separation of Mn2+ and Ni2+? Explain. With .030M Mn2+, .030 Ni2+,.10M H2S. Ph of MSN is 5.01 and 1.29 for NiS
How much of the cation that first precipitated remains when the second cation behind to precipitate? Would this fractional procedure be a good separation technique for these ions?
Calculate the probability that a quantum mechanical particle in a one-dimensional box will be found in the left quarter of the box through repeated measurements when it is in the lowest-energy state?
suppose that 1.431 g of impure baoh2 is dissolved in enough water to produce 196 ml of solution and that 39.5 ml of
A solution is prepared by mixing 70.0 mL of 0.010 M BaCl2 and 175 mL of 0.080 M K2SO4. What are the concentrations of barium and sulfate ions in this solution? Assume only SO42- ions (no HSO4? ) are present.
A rigid ball that contained 25.0 liters of air at 22°C and 6.25 atm pressure was placed in an oven at a temperature of What was the new pressure inside the ball?
How would the ground-state energy levels of X and H compare (where X is an atom with one electron like Hbut different energy levels)? For X: E = - (RH / n3) and RH is the same as H (2.179 ×10?18J).
When a molecule forms a hydrogen-bonded dimer as shown in your lab manual on pg 162 or is an electrolyte, you need to account for Van't Hoff factors. For the dimer shown in manual
calculate the amount of solute (g or mL needed to prepare the following solutions: a) 150 g of a 40.0%(m/m)LiBr solution. b) 450 g of a 2%(m/m) KCl solution. c) 225 mL of a 15%(v/v) isopropyl alcohol solution
How many moles of NH3 can be produced from the reaction of 0.5 moles of N2 with that amount of H2?
What minimum mass of succimer (C4H6O4S2) (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 micrograms/deciliter.
The human body obtains 965KJ of energy from a candy bar. If this energy were used to evaporate water at 100 degrees celsius, how much water (in liters) could be vaporized
For a solution containing 0.0066 M calcium nitrate and 0.054 M nitric acid, calculate the activity of the calcium ion.
You are concentrating a solution containing a polypeptide of modest molecular weight by pressure filtration through a membrane. The solute concentration on the feed side of the membrane is 0.10 M and the temperature is 25°C.
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