From the density of cesium chloride (3.97 g/cm3), calculate the distance between the centers of adjacent Cs+ and Cl- ions in the solid. Compare this value with the expected distance based on the sizes of the ions (Fig. 13.8). The ionic radius of Cs+ is 169 pm.
Answer to relevant QuestionsA given sample of wüstite has the formula Fe0.950O1.00. Calculate the fraction of iron ions present as Fe3+. What fraction of the sites normally occupied by Fe2+ must be vacant in this solid? 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 A plot of ln(Pvap) versus 1/T (K) is linear with a negative slope. Why is this the case? Use the heating–cooling curve below to answer the following questions. a. What is the freezing point of the liquid? b. What is the boiling point of the liquid? c. Which is greater, the heat of fusion or the heat of ...Define critical temperature and critical pressure. In terms of the kinetic molecular theory, why is it impossible for a substance to exist as a liquid above its critical temperature?
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