Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 23, Problem 23.11QAP
Interpretation Introduction
Interpretation:
The operational definition of pH and the process for using it should be determined.
Concept introduction:
Potentiometric titration are the simple titration that is used to measure the concentration of the given sample. No indicator is required in these titrations.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A 25.00cm of potassium dichromate(K,Cr,CH so lution aretadded to an acidified aqueous solution of potassium lodide(present in excess). The lodine
was then liberated according to the equation K-Cr.O;(aq) +14- (aq) + KI(ag) K(aq) + Cr (aq) + H;O(1) + 12(aq)
Required 19.63cm of a 0.1478M Na S,O for complete reaction. The equation for the reaction of between Na S;03 and I2 is
2(aq)+ Na;S;SO;(aq)-Na S4O6(aq) + Nallac)
Calculate the concentration of potassium dichromate (only 4 decimal places)
mol/L
What is the mass-action expression, Qc, for the following chemical reaction?
4H30*(aq) + 2CI"(aq) + MnO2(s)
Mn2+(aq) + 6H2O() + Cl2(g)
ABBREVIATIONS AND SYMBOLS
RFaraday constant
A free energy
atm frequency
ugas constant
NA gram
"Chour
e joule
C kelvin
dkilo prefix
E liter
Emeasure of pressure mm Hg vapor pressure
Hmilli prefix
S molal
Kmolar
CONSTANTS
amount of substance
ampere
atmosphere
atomic mass unit
Avogadro constant
Celsius temperature
centi- prefix
coulomb
density
electromotive force
energy of activation
enthalpy
F
molar mass
mole
Planck's constant
M
mol
R-8.314 J motK
R-0.08314 L bar mol K
pressure
rate constant
reaction quotient
second
K speed of light
k temperature, K
time
F-96,500 C mol
F=96,500 J V'mol
NA-6.022 x 102 mol
h-6.626 x 10 MJS
e-2.998 x 10 ms
VP
0°C-273.15 K
volt
V
I atm -1.013 bar - 760 mm Hg
Specific heat capacity of H;0-
4.184 Jg'K
m
- volume
M
entropy
equilibrium constant
1
PERIODIC TABLE OF THE ELEMENTS
18
1A
1
H
8A
2
13
14
4A
15
16
17
Не
1.008
ЗА
4.003
7A…
Suppose Gina climbs a high mountain where the oxygen partial pressure in the air decreases to 80 torr. Assume that the pH of
her tissues and lungs is 7.4 and the oxygen concentration in her tissues is 20 torr. The Pso of hemoglobin is 26 torr. The
degree of cooperativity of hemoglobin, n, is 2.8.
Estimate the percentage of the oxygen-carrying capacity that she utilizes. Calculate your answer to one decimal place.
capacity:
28
%
Chapter 23 Solutions
Principles of Instrumental Analysis
Ch. 23 - Prob. 23.1QAPCh. 23 - Prob. 23.2QAPCh. 23 - Prob. 23.3QAPCh. 23 - Prob. 23.4QAPCh. 23 - Prob. 23.5QAPCh. 23 - Prob. 23.6QAPCh. 23 - Prob. 23.7QAPCh. 23 - Prob. 23.8QAPCh. 23 - Prob. 23.9QAPCh. 23 - List the advantages and disadvantages of a...
Ch. 23 - Prob. 23.11QAPCh. 23 - What arc the advantages of microfabricated ISEs?...Ch. 23 - Prob. 23.13QAPCh. 23 - Prob. 23.14QAPCh. 23 - Prob. 23.15QAPCh. 23 - The following cell was used for the determination...Ch. 23 - The following cell was used to determine the pSO4...Ch. 23 - The formation constant for the mercury(II) acetate...Ch. 23 - Prob. 23.19QAPCh. 23 - The cell Ag|AgCl(sat’d)||H+(a = x)|glass electrode...Ch. 23 - The following cell was found to have a potential...Ch. 23 - The following cell was found to have a potential...Ch. 23 - The following cell was found to have a potential...Ch. 23 - Prob. 23.24QAPCh. 23 - Prob. 23.25QAPCh. 23 - Prob. 23.26QAPCh. 23 - Prob. 23.27QAP
Knowledge Booster
Similar questions
- Rewrite the Ka expressions as log expressions for the following chemical reactions H3PO4 (aq) + H2O (l) = H2PO4- (aq) + H3O+ (aq); Ka1 for phosphoric acid H2PO4-(aq) + H2O (l) = HPO42- (aq) + H3O+ (aq); Ka2 for phosphoric acid HPO42-(aq) + H2O (l) = PO43- (aq) + H3O+ (aq); Ka3 for phosphoric acidarrow_forwardDescribe the mechanism of proton conduction in water. Could a similar mechanism apply to proton conduction in liquid ammonia?arrow_forwardCould you give me some explanation, the correct answer is at the bottom of the question.arrow_forward
- Suppose a 0.048 M aqueous solution of sulfuric acid (H₂SO₂) is prepared. Calculate the equilibrium molarity of SO of sulfuric acid in the ALEKS Data resource. Round your answer to 2 significant digits. DM 0.2 X ? Help You'll find information on the propertiesarrow_forwardThe progress of the reaction between Iodine ions and potassium iodate(V) can be followed by withstanding samples of the reaction mixture at various times, quenching and then titrating with standard thiosulphate solution. The reaction equation is: I(aq) + IO3(aq) + 6H+(aq) + 4e ➡ I2(aq) + 3H2O(l) In one such experiment the following data were obtained. (see figure below) Determine the order of the reaction with respect to I(aq) and IO3(aq) ions Write the rate expression for the reaction.arrow_forwardCalculate the pH of a 0.035 mol dm–3 solution of ethanoic acid (assume that the degree of dissociation is very small). Give your final answer to three significant figures.arrow_forward
- Estimate the pH of 1.5 x 10-4 M CH3COOH (aq), being careful to treat this solution as dilute, and not open to the approximations used as given below.arrow_forwardThe pseudofirst-order rate constant for the decomposition of urea, CO(NH2)(aq) + 2 H2O(I)→ 2 NH4+(aq) + CO32-(aq). is 1.2 x 10-7 s- 1 at 60 °C and 4.6 x 10-7 s-1 at 70 oc. Estimate (a) the activation Gibbs energy and (b) the entropy of activa tion of the reaction.arrow_forwardState the limits to the generality of the expression for estimating the pH of an amphiprotic salt solution. Suggest reasons for why these limitations exist.arrow_forward
- (с) Н.О(ад) +2H* (аq) + 2 е 2 HО(1) Е" 3 1.78 V O(9) + 2 H* (аq) + 2 е НаО-(aд) E° = 0.68 V O Pt(s) | 02 (9) |H2O2 (aq), H* (ag) || H2O2 (aq), H† (aq) | Pt(s) Pt(s) | H2O2 (aq) | Pt(s) O Pt(s) | H2O2 (ag) | 02(g) || H† (ag) | Pt(s) O Pt(s) | H2O2 (ag), H† (aq) || O2 (9) | H2O2(aq), H† (aq) | Pt(s) (d) Mn?+ (ag) +2 е Mn(s) E° = -1.18 V Fe+ (ag) + 3 e → Fe(s) Е— - 0.036 V O Mn(s) | Mn²+ (ag) || Fe+ (aq) | Fe(s) O Fe(s) | Mn²+ (ag) || Fe*+ (aq) | Mn(s) O Fe(s) | Fe+ (aqg) || Mn²+ (ag) | Mn(s) O Mn(s) | Fe+ (ag) || Mn²+ (ag) | Fe(s)arrow_forward✓ 16 17 18 X 19 20 Calculate the solubility at 25 °C of AgBr in pure water and in 0.41 M KI. You'll probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. Solubility in pure water: Шм Solubility in 0.41 M KI: Оло X B dloarrow_forwardThe molar conductivity of 0.010 M CH3COOH(aq) is 1.65 mS m2 mol-1. What is the acidity constant, Ka, of the acid?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning