Which of the following concentrations would be practically equal in a calculation of the equilibrium concentrations...
Which of the following concentrations would be practically equal in a calculation of the equilibrium concentrations in a 0.130 M solution of H2C4H4O5, a diprotic acid? No calculations are needed to answer this question. (Select all that apply.)
[H3O+ ]
[OH − ]
[C4H4O52− ]
[HC4H4O5− ]
[H2C4H4O5]
Homework Answers
Add Answer to:
Which of the following concentrations would be practically equal
in a calculation of the equilibrium concentrations...
What are the equilibrium concentrations of all the solute species in a 0.99 M solution of...
What are the equilibrium concentrations of all the solute species in a 0.99 M solution of propanoic acid, HC3H5O2? (a) [H3O+], M; (b) [OH-], M; (c) [CH3CH2COOH], M; (d) What is the pH of the solution? For CH3CH2COOH, Ka = 1.34 x 10-5.
i need help you mix equal concentrations of the following reactants and products, will the reaction...
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) =...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
1. The initial concentrations of reactants and products for this reaction are given below. N2(g) +...
1. The initial concentrations of reactants and products for this reaction are given below. N2(g) + O2(g) ⇄ 2NO(g) Calculate Q for this reaction. Answer this to one decimal place (e.g. 10.2) The initial concentration of N2 is 1.0 M The initial concentration of O2 is 1.0 M The initial concentration of NO is 2.5 M 2. The reaction below is not at equilibria and Q = 1.7. The equilibrium constant is K = 0.230. 2SO3(g) ⇌ 2SO2(g) + O2(g)...
NEED HELP ASAP Determine the concentrations of the following ionic species present in a 0.305 M...
NEED HELP ASAP Determine the concentrations of the following ionic species present in a 0.305 M solution of the diprotic acid H2SO3. For H2SO3, Ka1 = 1.4E-2, Ka2 = 6.3E-8. What is the H3O+ ion concentration? What is the HSO3- ion concentration? What is the SO32- ion concentration?
Select all that apply. To which of the following would the addition of an equal volume...
Select all that apply. To which of the following would the addition of an equal volume of 0.70 M NaOH lead to a solution having a lower pH? water 0.80 M KOH 0.45 M HCI 0.55 M NaNO, a
What are the equilibrium concentrations of all the solute species in a 1.1 M solution of...
What are the equilibrium concentrations of all the solute species in a 1.1 M solution of cyanic acid, HOCN? (a) [H30+], M; (b) (OH), M; (c) [HOCN), M; (d) What is the pH of the solution? For HOCN, Ka = 3.5 x 10-4. (a) M (b) M (c) M (d)
Buffers 1. Indicate which of the following pairs of compounds could be used to make a buffer solution by placing an X i...
Buffers 1. Indicate which of the following pairs of compounds could be used to make a buffer solution by placing an X in the appropriate column. Buffer Solution | Not a Buffer Solution Pair of Compounds HF and Cl H.COs and OH HNO2 and NO NHa and NH L 2. Write out the reaction of acetic acid CH.COOH reacting with water. 3. What is the pH of a buffer solution in which the (CH3COOH) is 0.229 M and the (CH...
H2A is a diprotic acid of which pKa values are 3.0 and 7.0. Answer to the following questions.
H2A is a diprotic acid of which pKa values are 3.0 and
7.0. Answer to
the following questions.
(d) Please explain how to prepare 0.1 M buffer solution with the pH of 7.4. Assume that the equilibrium concentrations of an acid and its conjugate base remain close to their formal concentration and that the buffer solution behaves ideally at room temperature. (10 pt)
(d) Please explain how to prepare 0.1 M buffer solution with the pH of 7.4. Assume that...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in water? (3 pts) A) nitrous acid B) chlorous acid C) ascorbic acid D) hydrobromic acid E) citric acid 15. Which solution has the highest pH? (3 pts) A) 0.10 M HBr(aq) B) 0.10 M HI (aq) C) 0.10 MHF (aq) D) 0.10 M HCl(aq) E) 0.10 M HClO4(aq) 16. Which of the following solutes, dissolved in 1.0 kg of water, would be expected to...
i need help
you mix equal concentrations of the following reactants and products, will the reaction proceed to the left or to the right? Explain your answer briefly. (6 pts) (a) HF (aq) + NO3(a) HNO, (aq) + F (b) NH. (aq) + CO2(aq) HCO3' (aq) + NH3(aq) 17. The concentration of OH in human blood is 2.24 x 10-7M. Calculate the concentration of H30 ions and classify the solution as acidic, neutral or basic (5 pts) 18. (a) What...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
Select all that apply. To which of the following would the addition of an equal volume of 0.70 M NaOH lead to a solution having a lower pH? water 0.80 M KOH 0.45 M HCI 0.55 M NaNO, a
What are the equilibrium concentrations of all the solute species in a 1.1 M solution of cyanic acid, HOCN? (a) [H30+], M; (b) (OH), M; (c) [HOCN), M; (d) What is the pH of the solution? For HOCN, Ka = 3.5 x 10-4. (a) M (b) M (c) M (d)
Buffers 1. Indicate which of the following pairs of compounds could be used to make a buffer solution by placing an X in the appropriate column. Buffer Solution | Not a Buffer Solution Pair of Compounds HF and Cl H.COs and OH HNO2 and NO NHa and NH L 2. Write out the reaction of acetic acid CH.COOH reacting with water. 3. What is the pH of a buffer solution in which the (CH3COOH) is 0.229 M and the (CH...
H2A is a diprotic acid of which pKa values are 3.0 and
7.0. Answer to
the following questions.
(d) Please explain how to prepare 0.1 M buffer solution with the pH of 7.4. Assume that the equilibrium concentrations of an acid and its conjugate base remain close to their formal concentration and that the buffer solution behaves ideally at room temperature. (10 pt)
(d) Please explain how to prepare 0.1 M buffer solution with the pH of 7.4. Assume that...
14. Given equal concentrations of the following acids, which exhibits the greatest amount of ionization in water? (3 pts) A) nitrous acid B) chlorous acid C) ascorbic acid D) hydrobromic acid E) citric acid 15. Which solution has the highest pH? (3 pts) A) 0.10 M HBr(aq) B) 0.10 M HI (aq) C) 0.10 MHF (aq) D) 0.10 M HCl(aq) E) 0.10 M HClO4(aq) 16. Which of the following solutes, dissolved in 1.0 kg of water, would be expected to...
Most questions answered within 3 hours.
-
The mayor of a town has proposed a plan for the construction of
a new community....
asked 5 minutes ago -
2. KopyKat is a firm that specializes in printing business cards
using the latest laser technology....
asked 24 minutes ago -
What type of stock pays dividends in arrears?
A.
Nonminus−cumulative
preferred stock
B.
Cumulative preferred stock...
asked 22 minutes ago -
Discuss what issues you see as needing to be addressed in an
organization in order to...
asked 24 minutes ago -
Why does varying input frequency to a buck converter affect the
magnitude of the output voltage...
asked 27 minutes ago -
Given the following reduction half-reactions:
Fe3+(aq)+e−→Fe2+(aq)
E∘red=+0.77V
S2O2−6(aq)+4H+(aq)+2e−→2H2SO3(aq)
E∘red=+0.60V
N2O(g)+2H+(aq)+2e−→N2(g)+H2O(l)
E∘red=−1.77V
VO+2(aq)+2H+(aq)+e−→VO2+(aq)+H2O(l)
E∘red=+1.00V
Write balanced chemica
asked 28 minutes ago -
Consider a random variable X with PDF given by f(x)=1/10 for x =
0, 1, 2,...,9....
asked 26 minutes ago -
This is QA Tester's task
What was the most heinous bug that you let slip through?...
asked 40 minutes ago -
What is the chemical equation (with states) for this
reaction in balanced and unbalanced form?
In...
asked 43 minutes ago -
In engineering and product design, it is important to consider
the weights of people so that...
asked 48 minutes ago -
The first-order decomposition of N2O5 at 328 K has a rate
constant of 1.70 × 10-3...
asked 50 minutes ago -
Do you believe that some things that fall into the category of
“pseudoscience” are worth believing...
asked 1 hour ago