Determining the hydronium ion concentration
What mimimum hydronium ion concentration (M) would be needed to prevent precipitation of cupric hydroxide (Cu(OH)2 <=> Cu2+ + 2OH- , Ksp = 2.2 x 10-20) from a solution containing 0.010 M Cu2+ ion?
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The uncertainty B in some observable B is given by a formula B=sqrt<B^2>-<b>^2. Use this formula to determine uncertainty in position and momentum for the ground state of a quantum mechanical particle of mass m in a one-dimensional 'bo
1.770 g of a solid white acid are dissolved in water and completely neutralized by the addition of 36.96 mL of 0.437 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium(III) fluoride.
On a 150-Q lossless transmission line, the following observations were noted: distance of first voltage minimum from the load = 3 ern; distance of first voltage maximum from the load = 9 em: S = 3. Find ZL.
The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of the non-volatile solute in the solution?
A closed gas turbine unit uses neon as the working fluid. There are two stages of compression with intercooling from 480kPa and 290K to a maximum pressure of 2.75MPa with an intermediate pressure of 1149kPa.
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
Find the Density of a substance with a mass of 51.2g and a volume of 150mL
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