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Ch.7 - Periodic Properties of the Elements

Chapter 7, Problem 100

The first ionization energy of the oxygen molecule is the energy required for the following process: O21g2¡O2 +1g2 + e- The energy needed for this process is 1175 kJ>mol, very similar to the first ionization energy of Xe. Would you expect O2 to react with F2? If so, suggest a product or products of this reaction.

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All right. Hi everyone. So this question says that the first ionization energy of the oxygen molecule is the energy required for the following process. In this case, one electron is removed from oxygen gas to produce ac and one free electron. The energy needed for this process is 1175 kilojoules per mole. Very similar to the first ionization energy of xenon. Would you expect 02 to react with F two if so suggest a product or products of this reaction? So here we have four different answer choices proposing whether or not such a reaction is possible and different products if the answer is yes. So it's worth mentioning here that Xenon, if you recall is an example of a noble gas, other noble gasses include krypton and radon among others. But for Xenon, in particular, xenon is explicitly known to react with fluorine or F two because zenon can combine with one molecule of fluorine which is F two to create xef two or xenon di fluoride. So because this is known to occur and the product is actually quite stable, we can compare this to the process being described for oxygen. Now, because 02 has approximately the same or at least similar ionization energy as xenon, we can predict that 02 can react with F two in a similar way because their first ionization energy or energies I should say are relatively similar numerically. So here we have a few different possibilities when it comes to oxygen reacting with fluorine. So we can take 02 an F two and combine them together to produce 02 F two or we can add another mole of flooring. So that's one mole of 02 and two moles of F two. This can produce two moles of, of two. So the main point here is that depending on the number of moles of fluorine added, whether it's one or two, we can produce di oxygen di fluoride or two moles of oxygen di fluoride. So the answer here is going to be yes, right. 02 can react with F two to form the products of two or 02 F two, which corresponds to option C in the multiple choice and there you have it. So with that being said, thank you so very much for watching. And I hope you found this helpful.
Related Practice
Textbook Question

Which of the following chemical equations is connected to the definitions of (a) the first ionization energy of oxygen (i) O1g2 + e-¡O-1g2 (ii) O1g2¡O+1g2 + e- (iii) O1g2 + 2 e-¡O2-1g2 (iv) O1g2¡O2+1g2 + 2 e- (v) O+1g2¡O2+1g2 + e-

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Textbook Question
The electron affinities, in kJ>mol, for the group 11 and group 12 metals are as follows: Cu -119 Zn 7 0 Ag -126 Cd 7 0 Au -223 Hg 7 0 (b) Why do the electron affinities of the group 11 elements become more negative as we move down the group? [Hint: Examine the trends in the electron affinities of other groups as we proceed down the periodic table.]

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Textbook Question

Hydrogen is an unusual element because it behaves in some ways like the alkali metal elements and in other ways like nonmetals. Its properties can be explained in part by its electron configuration and by the values for its ionization energy and electron affinity. (a) Explain why the electron affinity of hydrogen is much closer to the values for the alkali elements than for the halogens.

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Textbook Question

It is possible to define metallic character as we do in this book and base it on the reactivity of the element and the ease with which it loses electrons. Alternatively, one could measure how well electricity is conducted by each of the elements to determine how 'metallic' the elements are. On the basis of conductivity, there is not much of a trend in the periodic table: Silver is the most conductive metal, and manganese the least. Look up the first ionization energies of silver and manganese; which of these two elements would you call more metallic based on the way we define it in this book?

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Textbook Question

Which of the following is the expected product of the reaction of K(s) and H2(g)? (i) KH(s), (ii) K2H(s), (iii) KH2(s), (iv) K2H2(s), or (v) K(s) and H2(g) will not react with one another.

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Textbook Question

A historian discovers a nineteenth-century notebook in which some observations, dated 1822, were recorded on a substance thought to be a new element. Here are some of the data recorded in the notebook: 'Ductile, silver-white, metallic looking. Softer than lead. Unaffected by water. Stable in air. Melting point: 153 °C. Density: 7.3 g>cm3. Electrical conductivity: 20% that of copper. Hardness: About 1% as hard as iron. When 4.20 g of the unknown is heated in an excess of oxygen, 5.08 g of a white solid is formed. The solid could be sublimed by heating to over 800 °C.' (a) Using information in the text and the CRC Handbook of Chemistry and Physics, and making allowances for possible variations in numbers from current values, identify the element reported.

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