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I1 = 896 kj/mole, I2 = 1752 kj/mole, I3 = 14807 kj/mole, and I4 = 17948 kj/mole. Explain to which family in the periodic table does the unknown element most probable belong? Can you calculate a possible row or principal quantum number?
determine the freezing point depression of a solution that contains 30.7 g glycerin c3h8o3 molar mass 92.09 gmol in
A disk has a moment of inertia 3.0 x 10-4 kg. m2 and rotates with an angular speedof 3.5 rad/sec. What net torque must be applied to bring it to rest within 3 s.
How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?
What is the concentration of glucose in the original sample? In moles/liter? And in mg%?
A sample of saturated magnesia is found to have [OH1-] = 3.22 x 10-4M. What is the pOH of the solution. Is magnesia acidic (A), basic (B), or neutral (N)
Suppose that you are carrying out a dehydrohalogenation reaction on 2-bromo-2,3-dimethylpentane to yield alkenes
Determine osmolarity of solution when 25.0 grams of aluminum chloride dissolves in 2.50 liters of H2O.
AgBr is the light-sensitive compound in most photographic films. Assume, when film is exposed, that the light energy absorbed dissociates the molecule into atoms.
Stock solution A is prepared by dissolving 165.1 mg of ferrous ammonium sulfate in water and diluting to volume in a 500-mL volumetric flask. Calculate the concentration of iron, in ppm, in stock solution A.
what product and how much of it would you obtain if you heated 1.0mL of ethanol with 2.0 mL of glacial acetic acid in the presence of a few drops of sulfuric acid?
What are the seven redox reactions of these species of Mn2+?Mn2+ Mn(OH)2 (s) Mn3O4 (s) Mn2O3 (s) MnO2 (s) H2O H+ e-
1. the standard enthalpies of formation for co2 g and waterl are -393.5 kjmol and -285.8 kjmol respectively. the
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