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Name and explain the theory that allows scientists to predict the shape of a molecule?
How do scientists determine the type of bonds present in a chemical compound?
Name the salt K4[Pt(CO3)2F2] given that the carbonate ion acts as a monodentate ligand in the complex. The oxidation number of platinum is +2.
A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize
Problem- Determine the element of lowest atomic number that contains a complete d subshell in the ground state.
What levels should be given? Should growth hormone be administered to non-GH-deficient people? Why or why not?
Based on the structure and boiling point(176-177C) of Eucalytol. what aspects of this molecule allow it to separate from hexane? And which of the following temperature option of is best for separating eucalytus oil and why?
At 55.0 , what is the vapor pressure of a solution prepared by dissolving 73.2 of in 247 of water? The vapor pressure of water at 55.0 is 118 . Assume complete dissociation of the solute.
The Eo values for the following two half-reactions are listed in an ancient standard reduction potential table as, respectively, 0.907 and 0.972 volts.
A hypersaline solution with a molality of 3.68m has a salt content so high that the mass of the solution per 1000 grams of water is 1215g. Calculate the molarity.
you have determined a gc spectrum for your sample oil. you find 3 peaks. from determination of peak area you find that
A 0.140-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni^2+ ions at equilibrium? Assume the formation constant* of Ni(NH3)6^2+ is 5.5x10^8.
During a recrystallization a student takes 1g of a white (colorless) solid and adds 5 mL of acetone. He heats the mixture in a boiling water bath and adds another
Calculate the ionic strength of a solution containing 0.010 M calcium sulfate and 0.010 M sodium chloride. Show all work.
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