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What volume of 0.862 M KOH solution is required to make 3.75 L of a solution with pH of 12.8?
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of H3O^+ in a cola that has a pH of 3.120
what fraction of the band would be filled with electrons? Assume that all valence bands (5s, 4d, and 5p) overlap. Show your work and your resulting band diagram.
Bulb A with volume of 500 mL initially contains N2 at 0.7 atm pressure and 25?C. Bulb B, with volume of 800 mL initially contains O2 at 0.5 atm pressure and 0?
What is the redox number for nitrogen in a molecule of nitrogen dioxide
Define pH. why do chemists normally choose to discuss the acidity of a solution in terms of pH rather than hydrogen ion concentration [H+]
What mass of sucrose should be combined with 464g of water to make a solution with an osmotic pressure of 8.60atm at 280K? (Assume the density of the solution to be equal to the density of the solvent.)
For an ensemble consisting of a mole of particles having two energy levels separated by 1000. cm-1, at what temperature will the internal energy equal 2.90kJ?
An optimization from a particular starting structure of a compound C5H10O2 leads to an energy of 25.12 KJ/mol.
If a space probe weights 39,200 N on the surface of earth, what will be the mass of the probe on the surface of mars.
The oxidation of nitrogen monoxide gas by molecular oxygen to form nitrogen dioxide gas is reversible and exothermic. Predict the effect of each of the following changes on the position of the equilibrium and a relative change in Kc.
Perform a degree of freedom analysis and show that all of the unknowns can be solved.
28.80 mL of a 0.1726 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample
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