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1. Suppose you were given a sample of iodine crystals, a sample ofantimony, and a sample of mixture of iodine and antimony that hadbeen ground together to form a fine powder of uniformconsistency. look up the physical and chemical properties ofboth iodine and antimony. then list the properties of eachelement that you believe would be useful in separating andrecovering them from the mixture. on the basis of theseproperties, devise a procedure to separate the two elements fromthe mixture and recover the separate element.2. Suppose you heat three solids in open vessels and then allowthem to cool. tje first gaims mass, the second loses mass,and the mass of the third remains unchanged. how can youreconcile these facts with the generalization that in a chemicalreaction the total mass of the reating materials is equal to thetotal mass if the products?4. An ice cube melts at room temperature and water freezes attemperature of 0 degree cel. and below. from thesefacts, what can you infer concerning the relationship between the temperature of a system and the influence of the entropy factor on the change that the system undergoes?
Arrange the following in order of decreasing acidity. I. benzoic acid (C6H5CO2H) II. benzyl alcohol (C6H5CH2OH) III. phenol (C6H5OH)
What maximum mass of sulfur in kg could be produced by the reaction of 1.3 x 10 4(the 4th) m3 of SO2(g) with 2.5 x 10 4(the 4th) m3 of H2S(g), both at STP
Use this information to estimate the X-X (single-)bond energy in the X2H4 molecule.
A H atom emitts a photon with a wavelength of 4.34 × 102 nm. If the energy of the initial state of the H atom was -8.72 × 10(-20) J, calculate the energy of the final state. Express answer in scientific notation.
A 1.00-g solid sample containing a mixture of NaCl and H3C6H5O7, a triprotic acid, is dissolved in 15 ml of water. Titration of the acid solution requires 25.40 mL of 0.1598 M NaOH solution to reach the endpoint.
Concentrated sulfuric acid (almost 100%) H2SO4 has a recognized density of 1.84 grams/cm^3. Based on this, calculate the molarity of this liquid.
How many grams of Helium does a 25.0 Liter balloon contain at 102.0 kPa and 24 degrees Celsius?
in a .1000 M NaOH solution, 20.76 mL of the NaOH solution were required t neturalize completely 13.15 mL of the malonic acid solution; what is the molarity of the malonic solution?
liquid mercury at atmospheric pressure and 298K to 1.25L at constant temperature requires 46.6kbar (kilobars) of external pressure. What is the isothermal compressibility of Hg(l)?
The hydrogen atom can absorb light of wavelength 2626 nm. (a) In what region of the electromagnetic spectrum is this absorption found? (b) Determine the initial and final values of n associated with this absorption. initial
A compound containing only boron, nitrogen, and hydrogen was found to be 40.3% boron, 52.2% nitrogen, and 7.5% hydrogen by mass. If 3.301 grams if this compound is dissolved in 50.00 grams of benzene
the emission line used for zinc determinations in atomic emissionspectroscopy is 214 nm. if there are
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