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The atomic radius of K is 227 pm as well as that of K+ is 138 pm. Compute the percent decrease in volume that take place when K(g) is converted to K+(g). The volume of a sphere is 4/3p3, where r is the radius of the sphere.
Sketch the 1H NMR spectra for all of the isomers of RhH2Cl(PPh3)3. Consider only the hydride hydrogens (directly bonded to rhodium). Assume the following coupling constants
The water level in a graduated cylinder was at 211 rises initially it raised to 270 after adding a piece of lead is submerged. Determine the mass in grams of the lead?
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions.
a sample of methane gas having a volume of 2.80 l at 25 degrees celsius and 1.65 atm was mixed with a sample of oxygen
The exact amount of 5.0-M NaOH needed to neutralize the remaining H+ ions and to precipitate out the Zn2+ ions as Zn(OH)2 is then needed. Determine the mass of Zn(OH)2 precipitate formed
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal bioling point of -0.4 celsius. A 250 Ml sealed flask contains 0.55 grams of butane at -22.0 celsius. How much butane is present as a liquid?
Suppose that 1.02 of rubbing alcohol evaporates from a 75.0 aluminum block. If the aluminum block is initially at 25C, what is the final temperature of the block after the evaporation of the alcohol?
A NiMH battery containing 4.10 g of NiO(OH)was 50% discharged when it was connected to a charger with an output of 1.30 A at 1.3V.
If a system has 225 kcal of work done to it, and releases 5.00 x 10^2 kJ of heat into its surroundings, what is the change in internal energy of the system
Peonin is a red pigment found in the petals of peony flowers. Why do you think peonin is bonded to two hexoses? What monosaccharide(s) would be produced by acid-catalyzed hydrolysis of peonin?
Determine the maximum number of electrons that can be found in each of the following subshells.
A 36.3 ml aliquot of 0.0529 M H2SO4 (aq) is to titrated with 0.0411 M NaOH (aq) What volumen (ml) of base will it take to reach the equivalence point
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