ion-selective electrode was immersed in standard solutions whoseionic strength was constant at 2.0 M.Ca²+ (M)E (mV)3.38 X 10-53.38 x 10-43.38 X 1033.38 X 10-23.38 X 10-1-74.8-46.4-18.7+10.0+37.7(a) Prepare a calibration curve and find the least-squares slope andintercept and their standard deviations.(b) Calculate the value of B in Equation 14-13.(c) For a measured potential, the calibration curve gives uslog[Ca?+]. We can compute [Ca?+] = 10loglCa"I, Using rules forpropagation of uncertainty in Table 3-1, calculate [Ca²+] and itsassociated uncertainty of a sample that gave a reading of-22.5 (+0.3) mV in four replicate measurements. Calibration curve and propagation of uncertaintyfor exponents. The following data were obtained when a Ca2+14-38.

Answer - (a) According to the question - Given -

ion-selective electrode was immersed in standard solutions whose ionic strength was constant at 2.0 M. Ca²+ (M) E (mV) 3.38 X 10 -74.8 3.38 X 10 -46.4 3.38 X 10-3 3.38 x 10-2 3.38 x 10-1 -18.7 +10.0 +37.7 (a) Prepare a calibration curve and find the least-squares slope and intercept and their standard deviations.

ion-selective electrode was immersed in standard solutions whose ionic strength was constant at 2.0 M. Ca²+ (M) E (mV) 3.38 X 10 -74.8 3.38 X 10 -46.4 3.38 X 10-3 3.38 x 10-2 3.38 x 10-1 -18.7 +10.0 +37.7 (a) Prepare a calibration curve and find the least-squares slope and intercept and their standard deviations.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: A bare silver wire electrode is dipped into a solution 0.05M in KNO3 (supporting electrolyte) and…

A: Given information: Concentration of potassium nitrate = 0.05 M Solubility product of AgBr =…

Q: 14-2. Convert the following potentials. The Ag | AgCl and calomel reference electrodes are saturated…

Q: PART A. Cell Potentials Negative Electrode Electrode E° cell Anode E° anode Cathode E° cathode…

A: The main equation to solve this question is: E0cell=E0reduction-E0oxidation Now, At cathode:…

Q: A moving boundary experiment was performed at 25°C with 0.100 M KCI on the bottom and (initially)…

A: distance moved by boundary = (96.5 C)/ (96485C/mol×0.100cm2×0.0700mol/L×0.388)=96.5/(…

Q: The table shows the value of the activity coefficient of K+ at different values of ionic strength.…

A: We have find out the activity coefficient of K+.

Q: The selectivity coefficient of the fluoride ion-selective electrode is kF-,OH- = 0.15. How does the…

A: Given: kF-,OH- = 0.15 1.4 x 10-5 M F- ions pH 5.5 change to pH 11.0

Q: 5 A 0.400-g sample of toothpaste was boiled with a 50.00 mL solution containing citrate buffer and…

Q: Calibration of a glass electrode gave a reading of 139.1 mV with a 0.05 m potassium dihydrogen…

Q: The conductivity of a 0.100 moldm-3 KCl solution at 25oC is 1.289 Scm-1. What is the resistance and…

A: Concentration of KCl solution (C) = 0.100 mol / dm-3 Conductivity of solution (κ) = 1.289 S cm-1…

Q: A glass electrode with a SCE reference electrode is calibrated at 25 °C with a pH 4.00 standard…

A: Answer: The voltage measured for 1x10-2 M solution of acetic acid is 0.9733V.

Q: What is the concentration of ClF in the water sample?

Q: 1. Fe- Cu cell T(K] E (mv) 680 25 700 50 720 70 740 graph of E (mv) per T(K) find equation I yax-b)

A: T(C) T(K) E(mV) 5. 278. 680 25. 298. 700 50. 323. 720…

Q: 5. An infinite flat plate of a solid has a surface potential of 50 mV in an infinite bath of 10-2…

A: 5. Utilize flat plate with a surface potential of 50 mV in a 10-2 molL-1 NaCl(aq) solution at Cl -…

Q: [3] The following Figure is the electrocapillary curves (A) and differential capacitance curves (B)…

A: The objective of this question is to show the figure (A), electrocapillary curves represent the…

Q: b Calculate PSCN if a cell consisting of a saturated calomel reference electrode ( E = 0.244 V) and…

Q: The following data were obtained with a cadmium-selective solid-state electrode. The ionic strength…

A: This is an example of concentration cell. In a concentration cell is made up of two half electrodes…

Q: Determine the mass of Al2(SO4)3 required to prepare 0.01N solution in 100 ml volume. Compare the…

Q: An ion-selective electrode (ISE) produces voltage output (mV) proportional to solution pH. You have…

A: The objective of this question is to show the pH 7 buffer solution serves as a reference for both…

Q: The table shows the value of the activity coefficient of Rb+ at different values of ionic strength.…

A: Ionic strength μ, M : 0.001, 0.005, 0.01, 0.05, 0.1Activity coefficient, γRb+ : 0.964, 0.924,…

Q: 6) Voltammetry - In linear scan voltammetry, the diffusion current is proportional to the…

A: The following equations will be needed to solve this set of problems: q=it .. (1) Here, q = charge i…

Q: rship X Report - Go X tActivity.do?locator=assignment-take Grammarly X NGLSync Pc X OWLv2 | OnliX +…

Q: The total volume required to reach the endpoint of a titration required more than the 50 mL total…

Q: Calibration of a glass electrode gave a reading of 139.3 mV with a 0.05 m potassium hydrogen…

Q: Calibration of a glass electrode gave a reading of 134.9 mV with a 0.05 m potassium hydrogen…

A: where:the following formula for calculating the calibration curve's observed slope:where: the…

Question

ion-selective electrode was immersed in standard solutions whose
ionic strength was constant at 2.0 M.
Ca²+ (M)
E (mV)
3.38 X 10-5
3.38 x 10-4
3.38 X 103
3.38 X 10-2
3.38 X 10-1
-74.8
-46.4
-18.7
+10.0
+37.7
(a) Prepare a calibration curve and find the least-squares slope and
intercept and their standard deviations.
(b) Calculate the value of B in Equation 14-13.
(c) For a measured potential, the calibration curve gives us
log[Ca?+]. We can compute [Ca?+] = 10loglCa"I, Using rules for
propagation of uncertainty in Table 3-1, calculate [Ca²+] and its
associated uncertainty of a sample that gave a reading of
-22.5 (+0.3) mV in four replicate measurements.

Calibration curve and propagation of uncertainty
for exponents. The following data were obtained when a Ca2+
14-38.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A series of solutions was prepared with pH varying from 1 to 13. Each solution contained 2.0mg/L fluoride and had the same ionic strength and temperature. The response of a fluoride ion selective electrode in each solution was recorded relative to a reference electrode. A graph of Ecell versus pH will curve: A.downwards at pH < 4.0 due to H+ interference B.downwards at pH < 4.0 due to OH- interference C.upwards at pH < 4.0 due to H+ interference D.upwards at pH < 4.0 due to OH- interference
What is the molar absorptivity coefficient? Question 13 options: 7.14 × 10–1 M–1 cm–1 1.40 × 103 M–1 cm–1 2.60 × 102 M–1 cm–1
By how many volts will the potential of an ideal Mg2+ ion selective electrode (ISE) change if the electrode is removed from a 1.0 x 10-4 M solution of MgCl2 and placed in 1.0 x 10-3 M MgCl2? 28 mL of 0.1M Ce4+ is mixed with 50 mL of 0.05M Fe2+. The solution potential is monitored with a Pt indicator electrode and an Ag/AgCl reference electrode. Calculate the potential of the Pt electrode and the cell potential. An ion selective electrode for NO2- has the following values of Log k for the listed interferents. Interferent Logk F- -3.1 SO42- -4.1 I- -1.2 NO3- -3.3 Which ion…
E (MV) (b) A fluoride ion selective electrode was used to analyse for fluoride as part of the QC procedures during the production of Listerine Fluoride Defense Anticavity Mouthwash. The mouthwash contains 0.02% sodium fluoride which is equivalent to 90 ppm of fluoride. The QC specification for the mouthwash is 90 ± 5 ppm of fluoride. During production three standards and six periodic samples were analysed each hour. The mouthwash samples were diluted 100 fold before the pH and ionic strength were adjusted using an appropriate TISAB before analysis. The following data was obtained for the standards and the calibration curve is shown below. Table 1. Solution E (MV) 1.00 x 10 M F 5.00 x 10-5 M F 40.5 60.2 1.00 x 10-5 M F 100.0 Figure 5. Continued... 120 -100 -80 -60 -40 -20 +o -3.5 -3.7 -3.9 -4.1 -4.3 -4.5 -4.7 -4.9 -5.1 -5.3 -5.5 Log [fluoride] (i) Six samples were analysed and the following potentials, measured in mV, were obtained; 58.9, 61.0, 60.7, 59.3, 59.6 and 61.7. Use this data…
You are titrating 40.040.0 mL of 0.0100 M Sn2+Sn2+ in 1 M HCIHCI with 0.0500 M T13+T|3+ resulting in the formation of Sn4+Sn4+ and Tl+Tl+. A PtPt indicator electrode and a saturated Ag|AGCIAG|AgCl reference electrode are used to monitor the titration. Calculate the cell potential (EE) after each of the given volumes of the TI3+TI3+ titrant have been added. a. 1ml b. 4ml c.7.90ml d.8ml e.8.10ml f.13ml