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Ammonia decomposes totally to hydrogen and nitrogen gas. If the total pressure of the reaction vessel at the end of the reaction is 250 mm Hg, explain what is the partial pressure of nitrogen gas?
Vitamin D3 Vitamins are chemicals required by humans in small amounts and are not made within our bodies. Such chemicals must therefore be acquired from ones diet.
Calculate the Delta G for the reaction when [Ag]=1.0 x 10-2M and [Br]=1.0 x 10-3M, Is the reaction spontaneous or nonspontaneous at these concentrations
To what volume should you dilute 59.5ml of a 4.95M KI solution so that 26.0ml of the diluted solution contains 3.45g of KI
Calculate the equilibrium constant for the dissolution of calcium carbonate at pH=6 in the presence of EDTA as shown below: CaCO3(s) + EDTA^4- (aq) + H+(aq) --> [Ca(EDTA)]2-(aq) + HCO3 (-1 charge)(aq)
Calculate the molar solubility of AgBr in a 1.00 M aqueous solution of ammonia. Then calculate the solubility of AgBr in pure water, and compare the two solubilities. (Ksp for silver bromide is 7.7x10 -13 and Kf for Ag(NH3)2+ is 1.6x10^7)
nickel ion forms the complex ion hexaamminenickel (II) with a formation constant of(Kf) of 5.6 x 10 ^8. initially the complex is formed when .002 M nickel sulfate is added to .10 M ammonia.
What are the advantages and disadvantages of animal studies and epidemiological studies for establishing dose-response relationships?
Propose a structure for an amine of formula C4H9N, which does not liberate a gas when treated with NaNO2 and HCl, and has IR absorptions at 917 cm-1, 990 cm-1, and 1640 cm-1,
The ionic radii of Cs+=.174nm, radius of Cl-=.181nm, and the coordination numberof each ion=8, Calculate the lattice parameter
Is this system at equilibrium? If not, will the amount of N(g) increase or decrease as the system proceeds to equilibrium at 4000 k in a fixed volume
A rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed v=3.00 m/s. A resistor R=0.400Ω is connected to the rails at points a and b, directly opposite from each other.
a new element has been added to the periodic table. its atomic number is 119. what is its mass in comparison to other elements, what are some properties of this new element, and what would be the elements atomic radius.
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