Which of the following are NOT potential error sources associated with pH measurement using a glass...
Which of the following are NOT potential error sources associated with pH measurement using a glass electrode?
Heavy metal ions
Junction potential
Alkaline error
Acid error
Homework Answers
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Which of the following are NOT potential error sources
associated with pH measurement using a glass...
Which of the following are errors that can occur when measuring the pH with a glass...
Which of the following are errors that can occur when measuring
the pH with a glass combination electrode?
Which of the following are errors that can occur when measuring the pH with a glass combination electrode? small selectivity for H^+ over other ions uncertainty in the pH of the standard buffer solutions sodium error at high pH junction potential the variable potential of the internal Ag|AgCl reference electrode
The alkaline error observed when the pH of alkaline solutions is measured occurs because: A. alkaline...
The alkaline error observed when the pH of alkaline solutions is measured occurs because: A. alkaline solutions can damage the glass electrode. B. the membrane of the glass electrode can respond to other cations besides H+. C. not enough time was allowed for the electrode to equilibrate with the solution. D. the glass electrode was saturated with H+ cations. E. the junction potential increases the uncertainty.
thank you in advance for the help 1. A pH glass electrode has a potential of...
thank you in advance for the help
1. A pH glass electrode has a potential of 0.395 V vs the SCE reference electrode when in a pH 7.00 buffer. Calculate the pH of a solution if a potential of 0.209 V was obtained. 2. A calibration curve was obtained using a fluoride ion selective electrode. Find the concentration of F in an unknown solution if the cell potential of the unknown solution is 0.050 V. Hint: Make a graph in...
The junction potential develops due to charge separation T F. The junction potential in a salt...
The junction potential develops due to charge separation T F. The junction potential in a salt bridge can be reduced somewhat if ions with similar mobilities are used inside the salt bridge. T F Junction potentials put a fundamental limit on the accuracy of direct potentiometric measurements T F The junction potential is not part of the cathode or anode, yet we usually know its contribution Ecell-. T F The junction potential represents a balance between unequal ion...
What are potential sources of error for an experiment which measures resistances of series and parallel...
What are potential sources of error for an experiment which measures resistances of series and parallel circuits?
I know some of the measured pH values are a little off due to error in...
I
know some of the measured pH values are a little off due to error
in the lab, but I need help filling out the “Ion Hydrolyzed” table
and then the “Net Ionic Equation” part. I remember doing net ionic
equations in General Chemistry I, bit don’t see how it applies
here.
Thanks, in advance! (i will rate!)
Learning Objectives: 1. To test the acidic and basic properties of ionic compounds. 2. To create a buffer solution and calculate its...
What distinguishes the four potential sources of error when handling surveys designed using probabilistic sampling xvi....
What distinguishes the four potential sources of error when handling surveys designed using probabilistic sampling xvi. Why is it necessary to organize a set of numerical data collected?
Which of the following sources of error is NOT a nonsampling error? O Voluntary response samples...
Which of the following sources of error is NOT a nonsampling error? O Voluntary response samples O Nonresponse error O Response error O Processing error
unknown solutions A and B are 0.1 M solutions of either HCI or NaOH. According to your pH measurement, which is which...
unknown solutions A and B are 0.1 M solutions of
either HCI or NaOH. According to your pH measurement, which is
which
10% Bleach Question: 1. Unknown solutions A and B are 0.1 M solutions of either HCl or NaOH. According to your pH measurements, which is which? 1 2. The pH of pure water is 7. Comment on how closely your measured pH values from each measurement method compared to the expected value. Which method was more appropriate for...
explain the effect of each of thes following sources of error on the molarity of acetic...
explain the effect of each of thes following sources of error on the molarity of acetic acid as determined in this experiment stating whether the concentration of acetic acid obtained would be too high or too low. a. The buret is contaminated with an acid solution b. The buret contains a larger air bubble in the tip, which disappears in the course of a titration. c. A small volume of the acid solution is spilled when you transfer it into...
Which of the following are errors that can occur when measuring
the pH with a glass combination electrode?
Which of the following are errors that can occur when measuring the pH with a glass combination electrode? small selectivity for H^+ over other ions uncertainty in the pH of the standard buffer solutions sodium error at high pH junction potential the variable potential of the internal Ag|AgCl reference electrode
The alkaline error observed when the pH of alkaline solutions is measured occurs because: A. alkaline solutions can damage the glass electrode. B. the membrane of the glass electrode can respond to other cations besides H+. C. not enough time was allowed for the electrode to equilibrate with the solution. D. the glass electrode was saturated with H+ cations. E. the junction potential increases the uncertainty.
thank you in advance for the help
1. A pH glass electrode has a potential of 0.395 V vs the SCE reference electrode when in a pH 7.00 buffer. Calculate the pH of a solution if a potential of 0.209 V was obtained. 2. A calibration curve was obtained using a fluoride ion selective electrode. Find the concentration of F in an unknown solution if the cell potential of the unknown solution is 0.050 V. Hint: Make a graph in...
I
know some of the measured pH values are a little off due to error
in the lab, but I need help filling out the “Ion Hydrolyzed” table
and then the “Net Ionic Equation” part. I remember doing net ionic
equations in General Chemistry I, bit don’t see how it applies
here.
Thanks, in advance! (i will rate!)
Learning Objectives: 1. To test the acidic and basic properties of ionic compounds. 2. To create a buffer solution and calculate its...
Which of the following sources of error is NOT a nonsampling error? O Voluntary response samples O Nonresponse error O Response error O Processing error
unknown solutions A and B are 0.1 M solutions of
either HCI or NaOH. According to your pH measurement, which is
which
10% Bleach Question: 1. Unknown solutions A and B are 0.1 M solutions of either HCl or NaOH. According to your pH measurements, which is which? 1 2. The pH of pure water is 7. Comment on how closely your measured pH values from each measurement method compared to the expected value. Which method was more appropriate for...
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