Question
In: Chemistry
HX is a weak acid that reacts with water according to the following equation: HX(aq) +...
HX is a weak acid that reacts with water according to the following equation: HX(aq) + H2O(l) H3O1+(aq) + X1-(aq) Ka = 3.16e-07 What is the equilibrium concentration of hydronium ion in a solution that is 0.0538 M in HX and 0.116 M in X1- ion?
Solutions
Expert Solution
HX (aq) + H2O(l) --------------------> H3O+(aq) + X-(aq)
0.0538 0 0.116
0.0538 - x x 0.116+x
Ka = x (0.116+x) / 0.0538 - x
3.16 x 10^-7 = x (0.116+x) / 0.0538 - x
x = 1.47 x 10^-7
[H3O+] = 1.47 x 10^-7 M
queen_honey_blossom answered 1 year agoRelated Solutions
Acid HX is a weak acid with Ka=1.0x10-6. A 50.0 mL sample of 1.00 M HX(aq)...
Acid HX is a weak acid with Ka=1.0x10-6. A
50.0 mL sample of 1.00 M HX(aq) is titrated with 1.00 M NaOH(aq).
What is the pH of the solution at the points listed below during
titration?
A. pH 1.00M HX solution before titration:
B. pH after 25.0mL 1.00M NaOH added:
Please show work! Thank you!
Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When 0.107 g...
Zinc metal reacts with hydrochloric acid according to the
following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When
0.107 g of Zn(s) is combined with enough HCl to make 54.9 mL of
solution in a coffee-cup calorimeter, all of the zinc reacts,
raising the temperature of the solution from 22.0 ∘C to 24.0
∘C.
Find ΔHrxn for this reaction as written. (Use 1.0 g/mL for the
density of the solution and 4.18 J/g⋅∘C as the specific heat
capacity.)
The acid C6H5COOH dissociates according to the equation: C6H5COOH (aq) ⇌ C6H5COO‐ (aq) + H+ (aq)...
The acid C6H5COOH dissociates according to the equation:
C6H5COOH (aq) ⇌ C6H5COO‐ (aq) + H+ (aq) K = 6.4 x 10‐5 If the
initial [C6H5CO2H] is 4.59 x 10‐3M, what are the equilibrium
concentrations of C6H5COO‐ and H+ for this dislocation
reaction?
57.68 g Iron reacts with 550.0ml of 3.12M of sulfuric acid according to the following equation....
57.68 g Iron reacts with 550.0ml of 3.12M of sulfuric acid
according to the following equation. How many liters of hydrogen
gas can be made at 745torr and 30.0 degrees celsius?
2Fe(s) + 3H2SO4 (aq) -> Fe2(SO4)3(aq) + 3H2(g)
The indicator crystal violet, (V) reacts with NaOH (OH- ) according to the equation: CV(aq) +...
The indicator crystal violet, (V) reacts with NaOH (OH- )
according to the equation: CV(aq) + OH- (aq) → CV- (aq) (Violet)
(Colorless) The rate law for the reaction is: Rate = k2 [CV]
[NaOH]. In an experiment the concentration of NaOH exceeds that of
the crystal violet by a factor of 1000 so the rate law becomes Rate
= k1 [CV] where k1 = k2 [NaOH] . The following data were obtained
for the reaction of crystal violet with...
The indicator crystal violet, (V) reacts with NaOH (OH- ) according to the equation: CV(aq) +...
The indicator crystal violet, (V) reacts with NaOH (OH- )
according to the equation: CV(aq) + OH- (aq) → CV- (aq) (Violet)
(Colorless) The rate law for the reaction is: Rate = k2 [CV]
[NaOH]. In an experiment the concentration of NaOH exceeds that of
the crystal violet by a factor of 1000 so the rate law becomes Rate
= k1 [CV] where k1 = k2 [NaOH] . The following data were obtained
for the reaction of crystal violet with...
Hydrocyanic acid (HCN) is a weak acid that dissociates in water as follows. HCN(aq) + H2O(l)...
Hydrocyanic acid (HCN) is a weak acid that dissociates in water
as follows. HCN(aq) + H2O(l) equilibrium reaction arrow H3O+(aq) +
CN −(aq) The acid-dissociation constant (Ka) for hydrocyanic acid
is 6.2 ✕ 10−10. Calculate the percent ionization (percent
dissociation) if the initial concentration of hydrocyanic acid was
0.29 M.
11. Zinc metal reacts with hydrochloric acid according to the following balanced equation: Zn (s) +...
11. Zinc metal reacts with hydrochloric acid according to the
following balanced equation: Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2
(g) When 0.103 g of Zn (s) is combined with enough HCl to make
50.00 mL of solution in a coffee cup calorimeter, all of the zinc
reacts raising the temperature of the solution from 22.50 oC to
23.70 oC. Calculate Hrxn in kJ/mol of Zn. (Assume that density of
the solution = 1.00 g/mL and...
HF(aq) is a weak acid with pKs = 3.17. In a solution of HF(aq) the following...
HF(aq) is a weak acid with pKs = 3.17.
In a solution of HF(aq) the following equilibrium sets:
HF(aq)+F- (aq) = HF2-(aq) K =
5.1
Calculate [F-(aq)], [HF(aq)] and
[HF2-(aq)] in a 0.10 M HF(aq) solution, where
pH = 3.2
I really need help with this one?
Consider the following dissociation of the weak acid, HCN: HCN(aq) ⇌ CN−(aq) + H+(aq) K =...
Consider the following dissociation of the weak acid, HCN:
HCN(aq) ⇌ CN−(aq) + H+(aq) K = 6.2×10-10 A solution is made with an
initial concentration of 2.60 M HCN. At equilibrium, what is the
concentration of H+ ions in solution? (Hint: You may use the 5%
approximation.)
?M
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A 2 kg ball is 60m in the air with the PE of 1176. It has...
- You have two fluids, water and a fluid that has a density that is 3/10 that...
- Consider the following two banks: Bank 1 has assets composed solely of a 10-year, 14.00 percent...
- Assignment Purpose The purpose of this lab is to write a well commented java program that...
- When a conductor e.g. metal or carbon is immersed in a electrolyte, electric double layer will...
- What are the basic elements of a valid contract? What are the elements of an offer?...
- Jean-Jacques Rousseau and John Locke both seem to have an idea as to what best impacts...
ADVERTISEMENT