Describe, in general, the structures of ionic solids. Com-pare and contrast the structures of sodium chloride and zinc sulfide. How many tetrahedral holes and octahedral holes are there per closest packed anion? In zinc sulfide, why are only one-half of the tetrahedral holes filled with cations?
Answer to relevant QuestionsAssume the two-dimensional structure of an ionic com-pound MxAy is What is the empirical formula of this ionic compound? The unit cell of MgO is shown below. Does MgO have a structure like that of NaCl or ZnS? If the density of MgO is 3.58 g/cm3, estimate the radius (in centimeters) of the O2- anions and the Mg2+ cations. Predict which substance in each of the following pairs would have the greater intermolecular forces. a. CO2 or OCS b. SeO2 or SO2 c. CH3CH2CH2NH2 or H2NCH2CH2NH2 d. CH3CH3 or H2CO e. CH3OH or H2CO In Breckenridge, Colorado, the typical atmospheric pressure is 520 torr. What is the boiling point of water (ΔHvap = 40.7 kJ/ mol) in Breckenridge? What pressure would have to be applied to steam at 350oC to condense the ...Consider a 75.0-g sample of H2O(g) at 125oC. What phase or phases are present when 215 kJ of energy is removed from this sample? (See Exercise 91.)
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