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Predict the common charges of the ions of tin. Explain your reasoning in terms of electron configuration.
Also, predict the highest possible charge of a zirconium ion. Explain your reasoning in terms of electron configuration.
Assume 40 g of solid (NH4)2Fe(SO4)2 * 6H20 was used in 1 l of solution to create the solution tested. What is the theoretical % Fe in a pure sample. Assume that the molecular wt = 392.15 g/mole.
Consider the equilibrium represented by the following equation: Heat + H2O(l) H2O(g) in which T=373K, P=101kPa Which of the following will favour the reverse reaction? (a) The total volume of the system is increased
Bombardment of nitrogen-14 with an alpha particle produces a proton and what other radioactive isotope
Calculate the pH of a buffer solution that is 0.423 M in H3BO3 and 0.199 M in NaH2BO3. The Ka of H3BO3 is 5.8e-10. a) The pH of this solution
A certain substance has a heat of vaporization of 39.17 Kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times higher than it was at 325k?
Phenol is a weak organic acid with Ka=1.0x10^-10. How many grams of phenol do you need to add to 500. mL of water to make a pH=5.75 solution
The balences in the lab can weigh a maximum of 220.000 g at once. if a beaker has a mass of 86.4329 g, what is the maximum volum of water
explain the main concept behind the vsepr theory of molecular shape. how do both number and type of electron pairs
Assuming that teh F-18 can be transported at 58.0 miles/hour, how close must the hospital be to the cyclotron if 63% of the F-18 produced is to make it to the hospital
What advantages and disadvantages exist for both organic and inorganic solar cells? Describe the main barriers or technical difficulties associated with each.
What is the de Broglie wavelength of a 145 g baseball traveling at 30.0 m/s (67.1mph)? Is the wavelength much larger or smaller than the diameter of an atom .
Vitamin C (L-ascorbic acid; MW = 176.0 g/mol) is a weak acid (pKa = 4.863). Suppose a 500.0 mg tablet is dissolved in water and titrated with 0.100 M NaOH. How many mL of NaOH are required to reach the equivalence point?
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