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Chapter 19: Q.9E (page 1092)
Why is the formation of slag useful during the smelting of iron?
Slag protects iron from oxidation.
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How many cubic feet of air at a pressure of 760 torr and 0 掳C is required per ton of \(F{e_2}{O_3}\)to convert that \(F{e_2}{O_3}\)into iron in a blast furnace? For this exercise, assume air is 19% oxygen by volume.
A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with excess silver nitrate. The resulting precipitate, filtered and dried, weighs 3.03707 g. What was the percent by mass of chloride ion in the original compound? What is the identity of the salt?
How many unpaired electrons are present in each of the following?
\(\begin{aligned}{}(a){\left( {Co{F_6}} \right)^{3 - }}(highspin)\\(b){\left( {Mn{{(CN)}_6}} \right)^{3 - }}(lowspin)\\(c){\left( {Mn{{(CN)}_6}} \right)^{4 - }}(lowspin)\\(d){\left( {MnC{l_6}} \right)^{4 - }}(highspin)\\(e){\left( {RhC{l_6}} \right)^{3 - }}(lowspin)\end{aligned}\)
Sketch the structures of the following complexes. Indicate any cis, trans, and optical isomers.
\(\begin{aligned}{}(a)\left( {Pt{{\left( {{H_2}O} \right)}_2}B{r_2}} \right)\\(b)\left( {Pt\left( {N{H_3}} \right)(py)(Cl)(Br)} \right)\\(c)\left( {Zn{{\left( {N{H_3}} \right)}_3}Cl} \right)\\(d){\left( {Pt{{\left( {N{H_3}} \right)}_3}Cl} \right)^ + }\\(e)\left( {Ni{{\left( {{H_2}O} \right)}_4}C{l_2}} \right)\\(f){\left( {Co{{\left( {{C_2}{O_4}} \right)}_2}C{l_2}} \right)^{3 - }}\end{aligned}\)
Name each of the compounds or ions given in \(Exercise 19.30\).
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