Question
In: Chemistry
Given the following information: hydrocyanic acid HCN Ka = 4.0×10-10 hypochlorous acid HClO Ka = 3.5×10-8...
Given the following information:
| hydrocyanic acid | HCN | Ka = 4.0×10-10 |
| hypochlorous acid | HClO | Ka = 3.5×10-8 |
(1) Write the net ionic equation for the reaction
that occurs when equal volumes of 0.292
Maqueous hydrocyanic acid and
sodium hypochlorite are mixed. It
is not necessary to include states such as (aq) or (s).
(2) At equilibrium will the reactants or products be favored?
(3) Will the pH of the resulting solution be less than seven, greater than seven or equal to seven?
Solutions
Expert Solution
(1) net ionic equation : HCN (aq) + ClO- (aq)
CN- (aq) + HClO (aq)
(2) At equilibrium reactants will be favored.
(3) pH of the resulting solution will be greater than seven.
Explanation
It is given that hypochlorous acid HClO is stronger than hydrocyanic acid HCN (because Ka for HClO > Ka for HCN).
This means conjugate base of hypochlorous acid, chlorite ClO- will be a weaker base than conjugate base of hydrocyanic acid, CN-.
Therefore, CN- will be the stronger base and push the reaction towards reactant side.
queen_honey_blossom answered 2 years agoRelated Solutions
Given the following information: nitrous acid HNO2 Ka = 4.5×10-4 hydrocyanic acid HCN Ka = 4.0×10-10...
Given the following information:
nitrous acid
HNO2
Ka = 4.5×10-4
hydrocyanic acid
HCN
Ka = 4.0×10-10
(1) Write the net ionic equation for the reaction
that occurs when equal volumes of 0.242
M aqueous nitrous acid and
sodium cyanide are mixed. It is
not necessary to include states such as (aq) or (s).
_____
+
_____
_____
+
_____
(2) At equilibrium the
_________(reactants/products) will be favored.
(3) The pH of the resulting solution will be
_________(greater than/equal to/less than)...
HClO is a weak acid (Ka = 4.0
HClO is a weak acid (Ka = 4.0
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts...
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts
as a weak base. What is the pH of a solution that is 0.030 M in
NaClO at 25 °C?
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts...
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts
as a weak base. What is the pH of a solution that is 0.011 M in
NaClO at 25 °C?
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts...
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts
as a weak base. What is the pH of a solution that is 0.026 M in
NaClO at 25 °C?
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts...
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts
as a weak base. What is the pH of a solution that is 0.017 M in
NaClO at 25 °C
1. Ka for hydrocyanic acid, HCN, is 4.00×10-10. Ka for acetylsalicylic acid (aspirin), HC9H7O4, is 3.00×10-4. Ka...
1. Ka for hydrocyanic acid,
HCN, is
4.00×10-10. Ka
for acetylsalicylic acid (aspirin),
HC9H7O4, is
3.00×10-4. Ka for
phenol (a weak acid),
C6H5OH, is
1.00×10-10
What is the formula for the
strongest acid?
2. Ka for nitrous acid,
HNO2, is
4.50×10-4. Ka for
hydrocyanic acid, HCN, is
4.00×10-10. Ka for
phenol (a weak acid),
C6H5OH, is
1.00×10-10.
What is the formula for the
strongest conjugate base?
3. The compound ammonia ,
NH3, is a weak base when dissolved in
water. Write...
1. The Ka of hypochlorous acid (HCLO) is 3.0x10-8. What is the pH at 25 C...
1. The Ka of hypochlorous acid (HCLO) is 3.0x10-8. What is the
pH at 25 C of an aqueous solution that is .0200 M in HCLO?
2. A .10 M aqueous solution of the weak base B at 25 C has a pH
of 8.00. The Value of Kb for B is _____.
HClO is a weak acid (Ka=4.0×10^−8) and so the salt NaClO acts as a weak base....
HClO is a weak acid (Ka=4.0×10^−8) and so the salt NaClO acts as
a weak base. What is the pH of a solution that is 0.037 M in NaClO
at 25 °C?
Given the following information: nitrous acid = HNO2 hydrocyanic acid = HCN HNO2 is a stronger...
Given the following information: nitrous acid = HNO2 hydrocyanic
acid = HCN HNO2 is a stronger acid than HCN (1) Write the net ionic
equation for the reaction that occurs when equal volumes of 0.080 M
aqueous nitrous acid and sodium cyanide are mixed. It is not
necessary to include states such as (aq) or (s). + + (2) Which is
the strongest base, NO2- or CN- ? (3) At equilibrium the what will
be favored?
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