Question

Why should you wait to put an ion-selective electrode or ph electrode in solution to write...

Why should you wait to put an ion-selective electrode or ph electrode in solution to write down our measurements/ what is happening during this time? Why should we nevee submerge an ion-selectice electrode in deionized water?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Determination of Fluoride in Toothpaste with a Fluoride Ion-Selective Electrode lab. 1. The electrode also responds...
Determination of Fluoride in Toothpaste with a Fluoride Ion-Selective Electrode lab. 1. The electrode also responds to OH-. Why doesn't this cause an error in the analysis, or does it? 2. What is the theoretical value of the slope of the graph? 3. What is the significance of the intercept? 4. Is the Oxford-University water supply fluoridated? Should it be? Why?
A standard solution of ammonia is 100.0 ppm. You use an ion selective electrode (ISE) to...
A standard solution of ammonia is 100.0 ppm. You use an ion selective electrode (ISE) to measure ammonia of this standard solution and obtain the following data (in ppm): 99.4, 101.1, 100.4, 98.0, 99.6. What is the standard deviation of the mean of ammonia (in ppm) determined by the ISE? Report your answer to two significant figures. I got 1.2 and that's incorrect.
[Ion selective electrode] If some of your F- was bound to Ca2+, how would your measured...
[Ion selective electrode] If some of your F- was bound to Ca2+, how would your measured voltage signal change? Background Info (might be useful): For this lab, you will determine the fluoride content in commercial mouthwashes using an ion selective electrode. This lab uses the direct potentiometry method, which assumes that matrix interferences are not a problem for determining the concentration of fluoride in toothpaste. To combat possible matrix problems, the total ionic strength adjustment buffer (TISAB) solution used in...
The calcium ion selective electrode (ISE) measures 11.8 mV in a 1 mM Ca2+ solution at...
The calcium ion selective electrode (ISE) measures 11.8 mV in a 1 mM Ca2+ solution at room temperature. Then the ISE is placed in another solution at body temperature and it measures 20 mV. What is the calcium concentration of the new solution? To avoid complicated theory assume that Eo is not Temperature dependent.
Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded below. The potential of...
Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded below. The potential of the ISE was measured against a saturated calomel electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve can be constructed from this data as a plot of potential (in mV) vs. pBr. Determine the slope and y-intercept of such a plot of the calibration data given. [Br-](M) Potential (mV) 0.300 -21.2 0.0300 36.7 0.00300 96.0 0.000300 154.7 0.0000300...
1. Compare the pHs of deionized water and tap water. Explain why the pH is not...
1. Compare the pHs of deionized water and tap water. Explain why the pH is not 7 and why the samples have different pHs. 2. Equal amounts of H+ and HO- are added to a buffer. What is the effect on the pH of the buffer? Explain. 3. How do you identify a suitable buffer system to maintain a pH of 3.0 in an aqueous solution?
Calculate pH of 0.10 M hydrochloric acid (why no Ka?) Calculate the pH of a 0.100...
Calculate pH of 0.10 M hydrochloric acid (why no Ka?) Calculate the pH of a 0.100 M calcium hydroxide (hint: write the formula first & rxn in water) Calculate the pH and % ionization of a 0.05 M hydrofluoric acid (ka = 8.0 x 10 -4) . What is the hydrogen ion concentration for a hydrochloric acid solution that has a pH of 2.30?
using equations, explain each of the observations made at each electrode in part A.... These were...
using equations, explain each of the observations made at each electrode in part A.... These were our results for this experiment: solution pH+ observation at cathode observation at anode anode NaCl Base A lot of bubbles a little bit of bubbles acid NaBr base a lot of bubbles tiny bubbles and it turned pae yellow neautral NaI base little bit of bubbles turned dark yellow base AgNO3 acid bubbles/ shiny silver no change neutral CuSO4 (c electrode) acid red copper...
In lab, you will be provided with a 1.8M acetic acid solution and a 1.0M NaOH...
In lab, you will be provided with a 1.8M acetic acid solution and a 1.0M NaOH solution. You want to make 100.0mL of a 0.5M acetic acid buffer at pH 5.00. What volume (mL) of the 1.8M acetic acid solution, NaOH solution, and deionized water should you combine? Show all work. (pKa of acetic acid= 4.75).
titration and Ka-measuring pH lab **please type and answer both questions, thanks 1. Why do you...
titration and Ka-measuring pH lab **please type and answer both questions, thanks 1. Why do you rinse the buret with the sodium hydroxide solution and not with distilled water? How would your titration results be affected if you rinsed with distilled water before filling your buret? 2. In one of the steps of the Procedure you were told to add enough water so that the end of the pH electrode will be covered, but that the actual volume was not...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT