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Iridium crystallizes in a face-centered cubic unit cell that has an edge length of 3.833 Å.
(a) Calculate the atomic radius of an iridium atom.
(b) Calculate the density of iridium metal.
Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?
A hypothetical metal has a face-centered cubic unit cell and a density of 6.12 g/cm3. The molar mass of the metal is 143.2 g/mol. What is the atomic radius of this metal?
calculate percent ionization of benzoic acid for a .7 M and a .0007 M solution. If the original concentration of HCOOH was .4 M and the toal molarity of particles at equilibrium is .406 M, what is the concentration of HCOOH at equilibrium
How many mL of 0.0221 M KMnO4 would it take to titrate a 0.5255 g sample of K3Fe(Ox)3? How could the results of your titration be used to determine if the sample was actually a mixture of K3Fe(Ox)3 and K4Fe(Ox)3
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
write balanced molecular ionic and net ionic equations for the reactions of chromium gives cr3 with solution of dilute
Write the balanced equation for the reaction of each hydrocarbon (cyclohexane, methylcyclohexane, toluene, ethylbenzene, isopropylbenzene, and tert-butylbenzene) with bromine.
Calculate the pH of the buffer prepared by mixing 35.0mL of 0.15M HC2H3O2 with a 25.0mL of 0.10M NaC2H3O2. K(a) for HC2H3O2 = 1.8 x 10^-5
Calculate the equivalent number of moles of potassium permanganate? 3) calculate the clarity of the potassium permanganate solution?
A reference sample of the same size from a plant alive today has a carbon-14 activity of 160.0 counts/min. If carbon-14 has a half-life of 5730 years and what is the age of the plant fossil in years
estimate the enthalpy change for the combustion of one mole of acetylene c2h2 to form carbon dioxide and water vapor.
an aqueous solution of 0.150 g of the enzyme lysozymedissolved in 210 ml of solution has an osmotic pressure of
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