Nonmetal Oxides Here we’ll have a closer look at nonmetal oxides, and how they behave in water.
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Transcript of Nonmetal Oxides Here we’ll have a closer look at nonmetal oxides, and how they behave in water.
NonmetalOxides Here well have a closer look at nonmetal oxides,
and how they behave in water. Nonmetal Oxides form Acidic
Solutions
Metals Nonmetals Nonmetal Oxides form Acidic Solutions Nonmetal
Oxides are oxides of elements on the right side of the staircase on
the periodic table. Remember, (click) nonmetal oxides react with
water to form acidic solutions. O S SO3 Well consider the nonmetal
oxide sulphur trioxide, SO3. Nonmetals have electronegativity
values closer to that of oxygen than metals have. O S not an ionic
solid So nonmetal oxides are not ionic solids like metal oxides
are. O S Covalent Bonds Instead the atoms are joined by covalent
bonds, where electrons are shared. O O S O H O S O H H O H At room
temperature, SO3 is a liquid. When it dissolves in water, O O O H O
S O H S H O O O H It reacts with water, and through a series of
reactions, O O O H H O S O H S H O O O Forms sulphuric acid, H2SO4.
The Lewis structure for sulphuric acid is shown here. If you check,
you will see that sulphur, oxygen, and hydrogen atoms are conserved
in this reaction. O S H O H When H2SO4 is in water, (click) a
molecule of H2SO4 will collide with a water molecule and donate a
proton to it, O S H + H O forming a hydrogen sulphate ion and a
hydronium ion. Makes the Solution Acidic
O Makes the Solution Acidic + H O S O H O O Because hydronium ions
are present, the solution will be acidic. Equations for Nonmetal
Oxides
Now well look at a few equations we can write for nonmetal oxides
reacting with water. Formula Equations for Reactions of Nonmetal
Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid When we are
considering the reactions of nonmetal oxides with water, we usually
stick to writing formula equations for these reactions. Well look
at some of the common ones here. Formula Equations for Reactions of
Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid The formula
equation summarizing the example we just went over is sulphur
trioxide or SO3 reacts with water to produce H2SO4, sulphuric acid.
Sulphuric acid is a strong acid. Formula Equations for Reactions of
Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid The other common
oxide of sulphur, sulphur dioxide, SO2, reacts with water to
produce H2SO3, or sulphurous acid. Sulphurous acid is a weak acid.
Formula Equations for Reactions of Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid A common oxide
of nitrogen is nitrogen dioxide, NO2. This reacts with Formula
Equations for Reactions of Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid Water to produce
both Formula Equations for Reactions of Nonmetal Oxides with
Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid Nitric acid,
HNO3, which is a strong acid, Formula Equations for Reactions of
Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid And nitrous
acid, HNO2, which is a weak acid. Formula Equations for Reactions
of Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid An oxide of the
nonmetal chlorine, Dichlorine monoxide, Cl2O, reacts with water to
produce the weak acid HOCl, hypochlorous acid. This is an
equilibrium reaction. Oxides of the other halogens have similar
reactions with water. Formula Equations for Reactions of Nonmetal
Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid One of the
common oxides of phosphorus, P4O6, reacts with water to produce the
weak acid H3PO3, phosphorous acid Formula Equations for Reactions
of Nonmetal Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid Another oxide of
phosphorus, P4O10, reacts with water to produce the weak acid
H3PO4, phosphoric acid Formula Equations for Reactions of Nonmetal
Oxides with Water
sulphuric acid sulphurous acid nitric acid nitrous acid
hypochlorous acid phosphorous acid phosphoric acid You should be
familiar with these reactions, especially the reactions for the
oxides of sulphur and nitrogen. Acidic Anhydrides Nonmetal Oxides
Are also Called
You should also know that nonmetal oxides (click) are also called
(click) acidic anhydrides. Acid Anhydrides Nonmetal Oxides Are also
Called
Or simply acid anhydrides. Its important to remember that nonmetal
oxides, or acid anhydrides react with water to produce acidic
solutions.