Chapter 14, Oxygen Video Solutions, Descriptive Inorganic Chemistry

Problem 1

The process of adding two electrons to an oxygen atom,
$$
\mathrm{O}(g)+2 \mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(g)
$$

Dr. Satish Ingale

Numerade Educator

02:33

Problem 2

Draw molecular orbital energy level diagrams for $\mathrm{O}_2{ }^{-}$and $\mathrm{O}_2{ }^{2-}$ and explain how they reflect the chemistry of these species.

Kyle Gassaway

Numerade Educator

01:16

Problem 3

Provide an explanation for why some metals are found in nature as the oxides, whereas others (such as lead and mercury) are found as sulfides.

Jorge Villanueva

Numerade Educator

03:48

Complete and balance the following.
(a) $\mathrm{MgO}+\mathrm{SiO}_2 \stackrel{\text { heat }}{\longrightarrow}$
(b) $\mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_8 \stackrel{\text { beat }}{\longrightarrow}$
(c) $\mathrm{KO}_3+\mathrm{H}_2 \mathrm{O} \rightarrow$
(d) $\mathrm{Cr}_2 \mathrm{O}_3+\mathrm{Al} \stackrel{\text { heat }}{\longrightarrow}$
(d) $\mathrm{ZnO}+\mathrm{OH}^{-}+\mathrm{H}_2 \mathrm{O} \rightarrow$

Catherine Lemar

Numerade Educator

01:13

Problem 5

Explain why, of the alkali metals, only lithium forms a normal oxide.

Catherine Lemar

Numerade Educator

01:51

Problem 6

Describe the commercial process for the production of $\mathrm{H}_2 \mathrm{O}_2$.

Lottie Adams

Numerade Educator

01:20

Problem 7

Describe the $\mathrm{SO}$ molecule by drawing a molecular orbital energy level diagram. Comment on the stability and nature of this molecule.

Sam Limsuwannarot

Numerade Educator

00:50

Problem 8

The melting points for $\mathrm{KO}_2, \mathrm{RbO}_2$, and $\mathrm{CsO}_2$ are 380,412 , and $432{ }^{\circ} \mathrm{C}$, respectively. Explain this trend in melting points.

Aadit Sharma

Numerade Educator

01:18

Problem 9

Explain why ozone is useful in water purification.

Lottie Adams

Numerade Educator

02:33

Problem 10

Draw the molecular orbital energy level diagram for $\mathrm{O}_2$, and describe what happens to the properties of the molecule when an electron is removed.

Kyle Gassaway

Numerade Educator

00:27

Problem 11

Chemically, oxygen is a very reactive gas, whereas nitrogen is comparatively inert. Explain this difference.

Amy Jiang

Numerade Educator

00:39

Problem 12

Molecular oxygen forms numerous complexes with transition metals. Speculate on the bonding modes that could occur without rupture of the $\mathrm{O}-\mathrm{O}$ bond.

Aadit Sharma

Numerade Educator

02:29

Problem 13

The species $\mathrm{O}_2{ }^{+}, \mathrm{O}_2{ }^{-}$, and $\mathrm{O}_2{ }^{2-}$ have stretching frequencies in the infrared region at 1145,842 , and $1858 \mathrm{~cm}^{-1}$ but not in that order. Match the stretching frequencies to the appropriate species, and explain your line of reasoning. Based on your assignments, estimate the position of the $\mathrm{O}-\mathrm{O}$ stretching frequency in $\mathrm{H}_2 \mathrm{O}_2$.

Rodger Claar

Numerade Educator

01:25

Problem 14

The bond angles in $\mathrm{H}_2 \mathrm{O}, \mathrm{HOF}$, and $\mathrm{OF}_2$ are $104.5,97$, and $103^{\circ}$, respectively. In terms of the orbitals used and atomic properties, explain this trend.

David Collins

Numerade Educator

01:56

Problem 15

Mixtures of $\mathrm{H}_2 \mathrm{~S}$ and $\mathrm{OF}_2$ react explosively. Write an equation for the reaction, and explain why it is so energetically favorable.

Stephen Ho

Numerade Educator

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15