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which of the following transition metal complexes is diamagnetic?
[Ni(CN)6]4- , [NiF6]4- ,[Nicl6]4- ,[Ni(h20)]2+
Consider two DNA molecules: one 400 base pairs long, the other 800 base pairs long. Assuming that each is a rigid rod of diameter 25 Å, with a length of 3.4 Å per base pai.
Limestone (CaCO3) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite
At what temperature will a gas be at if you allow it to expand from an original 456 mL at 65 celcius to 3.4 L?
Consider a solution formed by mixing 48.0 mL of 0.100 M H2SO4, 36.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 2 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH. Calculate the pH of this solution.
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N mean the group is attached to the nitrogen of the amine and m-nitrophenol. Specify the organic solvent and aqueous soluti..
The vapor pressure of dichloromethane,CH_2Cl_2, at 0 degrees C is 134 mmHg. The normal boiling point of dichloromethane is 40. degrees C. Calculate its molar heat of vaporization.
The specific heat of Ti is .523 J/gcelcius. What is the final temperature of 62g of Ti intially at 41celcius after 8.5kj of heat is added?
To determine the molar mass of an unknown protein, 1.00 mg was dissolved in 1.00 mL of water. At 25.0°C the osmotic pressure of this solution was found to be 1.47 × 10-3 atm.
Model symmetry, Construct a model* in which a tetrahedral (sp 3) carbon atom (black) has four different model atoms attached to it. Use the light blue ball, red, blue
Treatment of the bicyclic chloride A with lithium in tetrahydrofuran (THF) gave the monocyclic product B, C9H9Li. In deuterated THF, B exhibited a single proton NMR signal at 6.72 ppm
The concentration of HCl in a bottle was determined as follows: •3.00 mL of the acid were diluted to 250.00 mL •102.40 mL of the diluted acid were titrated with 0.08212-M NaOH
Consider a steel tank whose volume is 49.0 L and which contains O2 gas at a pressure of 18100 kPa at 29°C. What volume would the gas occupy at STP?
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