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The first ionization potentials for Na, K, and Rb are 5.138, 4.341, and 4.166 eV, respectively.
Assume that the energy level of the outer electron can be represented by a hydrogenlike formula with an effective nuclear charge Z'' and that the relevant orbitals are 3s, 4s, and 5s, respectively.
Calculate Z' for these atoms.
Problem- At 22 °C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.07. 1) What is the Ksp of the salt at 22 °C
For 550.0 mL of pure water, calculate the initial pH and the final pH after adding 0.010 mol of pH
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Explain what is the value of [O2(aq)] for water saturated with a mixture of 50% O2, and 50% N2 by volume at 25 Celsius and a total pressure of 1.00atm
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How many grams of NaOH are in a 225.0 mL sample of 2.5 M solution of NaOH.? Molar mass of NaOH is 40.0 g/mol
Identical hard spheres of radius R are packed together to form a simple cubic lattice. What is the ratio a/R, where a is the edge length of the unit cell
Tungsten has a BCC structure, an atomic radius of 0.137 nm and an atomic weight of 183.84 g/mol. Compute its theoretical density.
Question- The concentration of a HCl solution is 6.32 M. What conversion factor should you use to find the number of moles of HCl present in 10 L of this solution
State a balanced chemical equation for this reaction. Generate a plot of solution pH versus volume of 0.100 M HCL added for the titration of a solution of 250 mg of CaCO3 in 200.0mL of water with 0.100 M HCL; suppose that the HCL solution is added..
why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way
Why is it that when you look into any type of light for a long period of time that blotches of black appear when you look away
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