Identify the chemical species in the carbonate system, and explain the significance of the system...
Identify the chemical species in the carbonate system, and explain the significance of the system. Hence, on the bases of the following equilibria, determine the concentrations carbonate system species in a stream with a pH of 5.8.
CO2(g) ↔ CO2(aq) KH = 3.4 x 10-2 mol L-1 atm-1;
CO2(aq) + H2O ↔ H2CO3; Kr = 2 x 10-3 mol L-1 atm-1;
H2CO3(aq) ↔ H+ + HCO3-; Ka1 = 4.47 x 10-7 M.
HCO3- ↔ H+ + CO32-; Ka2 = 4.68 x 10-11 M.
Homework Answers
Add Answer to:
Identify the chemical species in the carbonate system, and explain the significance of the system...
Given the set of reactions below, combine the first two equations and then model the system resul...
Given the set of reactions below, combine the first two equations and then model the system resulting from the resulting two reactions as if it were a diprotic acid system. Include a fractional composition plot of the α of species CO2 (aq), HCO3 – (aq) and CO3 2– (aq) as a function of pH. CO2 (aq) + H2O ⇄ H2CO3(aq) H2CO3(aq) + H2O ⇄ HCO3 – (aq) + H3O+ HCO3 – (aq) + H2O ⇄ CO3 2– (aq) + H3O+...
What is the pH of a 1.25 L carbonate buffer which was prepared by mixing 0.4098...
What is the pH of a 1.25 L carbonate buffer which was prepared by mixing 0.4098 M of Na2CO3 and 0.550 M NaHCO3. (Ka of HCO3- = 4.70 x 10-11) HCO3- (aq) + H2O (l) ↔ CO32- (aq) + H3O+ (aq)
What is the pH of rainwater in pristine environments? Assume the temperature is 25°C, the total...
What is the pH of rainwater in pristine environments? Assume the temperature is 25°C, the total pressure is 1 atm and the rainwater is in equilibrium with the atmosphere. Solution: 5 species are present in the aqueous phase H2CO3(aq), HCO3-(aq), CO3-2(aq), H+ and OH- Equations: 1H2CO3 → H+ + HCO3- (carbonic acid dissociation) K1 = [H+][HCO3-]/[H2CO3] = 4.47 x 10-7M
a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated...
a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated beverages are less acidic than pure water. B. carbonated beverages contain measurably less water than the same volume of pure water. C. rainwater is slightly acidic b) A 1.0 M solution of a weak monoprotic acid with Ka = 1.0 10-6 would have a pH of: A. 1 B. 2 C. 3 D. 6 c) Ascorbic acid is a diprotic acid with Ka1 =...
8. The normal pH of human blood is about 7.4. The carbonate buffer system in the blood uses the following reaction:...
8. The normal pH of human blood is about 7.4. The carbonate buffer system in the blood uses the following reaction: CO2(+ 2H2O() H2CO3(aq) HCO3(aq) + H:04) The concentration of carbonic acid, H2CO3, is approximately 0.0012M and the concentration of the hydrogen carbonate ion, HCO3 is around 0.024M. Calculate the pH of blood
a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated beverages are less acidic than pure water. B. carbonated beve...
a) The consecutive equilibria: CO2(g) <=>CO2(aq) + H2O(l) <=>H2CO3(aq) <=>H+(aq) + HCO3-(aq), explain why: A. carbonated beverages are less acidic than pure water. B. carbonated beverages contain measurably less water than the same volume of pure water. C. rainwater is slightly acidic b) A 1.0 M solution of a weak monoprotic acid with Ka = 1.0 10-6 would have a pH of: A. 1 B. 2 C. 3 D. 6 c) Ascorbic acid is a diprotic acid with Ka1 =...
You create a 1 L solution of 0.1 M H2CO3. carbonic acid, H2CO3, is a diprotic...
You create a 1 L solution of 0.1 M H2CO3. carbonic acid, H2CO3, is a diprotic acid with Ka1 = 4.5 x 10-7 and Ka2 = 4.7 x 10-11. a) What will the initial pH of the solution be? b) What volume of 0.1 M NaOH will you need to add to reach the second equivalence point( remember carbonic acid deprotonates to bicarbonate HCO3- and then can deprotonate further to CO32-? c) At the second equivalence point, what will the...
Estimate the pH of natural rainwater, assuming the only substance effecting it is the adsorption of...
Estimate the pH of natural rainwater, assuming the only substance effecting it is the adsorption of CO2 from the atmosphere. Assume the concentration of CO2 is 390 ppm, and the temperature and pressure are 25 "C and 1 atmosphere. Steps. Assume the absorption of CO2 adds only the carbonate system ions so the ionic present must balance, and are due to Ht, OH, HCO3, and CO32. Establish your charges charge balance equation-+'s = -'s i. Assuming the rainfall is slightly...
Plankton, shellfish, and corals have an exoskelton made up of calcium carbonate (CaCO3). These organism need...
Plankton, shellfish, and corals have an exoskelton made up of calcium carbonate (CaCO3). These organism need to have the carbonate ion (CO3:2) in seawater in order to make their shells. In the ocean, carbonate is in equilibrium with the bicarbonate ion according to the following equation HCO3 (aq) + H2O(l) = CO2 (aq) + H30+(aq) Ka2 = 4.7 x 10-11 The pH of the ocean is decreasing. What effect does this have on the concentration of the carbonate ion? Answer:
1) why is CO2 the conjugate acid of bicarbonate? Please explaing CO2 (g) + H2O(l) ⇄...
1) why is CO2 the conjugate acid of bicarbonate? Please explaing CO2 (g) + H2O(l) ⇄ H2CO3 (aq) 2) Exercise increases metabolism and thus increase the amount of CO2 in the blood. Following a bout of intense exercise, the pH of your blood was found to be 7.1 and the HCO3− concentration in the blood to be 8 mM. Remember the overall reaction for the bicarbonate buffering system in the blood can be written as: H2CO3 (aq) ⇄ HCO3- (aq)...
8. The normal pH of human blood is about 7.4. The carbonate buffer system in the blood uses the following reaction: CO2(+ 2H2O() H2CO3(aq) HCO3(aq) + H:04) The concentration of carbonic acid, H2CO3, is approximately 0.0012M and the concentration of the hydrogen carbonate ion, HCO3 is around 0.024M. Calculate the pH of blood
Estimate the pH of natural rainwater, assuming the only substance effecting it is the adsorption of CO2 from the atmosphere. Assume the concentration of CO2 is 390 ppm, and the temperature and pressure are 25 "C and 1 atmosphere. Steps. Assume the absorption of CO2 adds only the carbonate system ions so the ionic present must balance, and are due to Ht, OH, HCO3, and CO32. Establish your charges charge balance equation-+'s = -'s i. Assuming the rainfall is slightly...
Plankton, shellfish, and corals have an exoskelton made up of calcium carbonate (CaCO3). These organism need to have the carbonate ion (CO3:2) in seawater in order to make their shells. In the ocean, carbonate is in equilibrium with the bicarbonate ion according to the following equation HCO3 (aq) + H2O(l) = CO2 (aq) + H30+(aq) Ka2 = 4.7 x 10-11 The pH of the ocean is decreasing. What effect does this have on the concentration of the carbonate ion? Answer:
Most questions answered within 3 hours.
-
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 18 seconds ago -
What is responsible for Jupiter's enormous magnetic field?
asked 15 minutes ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 17 minutes ago -
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 37 minutes ago -
Consider a labor market in which LD = 400 – 4W and LS = 250 +...
asked 51 minutes ago -
Let’s say you are teaching a typically-developing young child
how to eat with a spoon. Describe...
asked 34 minutes ago -
Ask Your Teacher A toy gun uses a spring to project a 5.6-g soft
rubber sphere...
asked 46 minutes ago -
*****DO NOT ANSWER THIS QUESTION IF YOU DON'T
KNOW*******
Question - PERSONAL DEVELOPMENT ESSAY and Detailed...
asked 53 minutes ago -
A certain rifle bullet has a mass of 5.25 g. Calculate the de
Broglie wavelength of...
asked 1 hour ago -
Research new software products that assist in project
communication management. Write a paper summarizing your findings,...
asked 1 hour ago -
the figure below to the left shows a beaker completely filled
with water. then a block...
asked 1 hour ago -
what is the duistribution channels of HUL in india and how they
distribute?
how is this...
asked 1 hour ago