Question

Using a glass electrode at 15 °C, the pHs and potential (Es) of the standard solution...

Using a glass electrode at 15 °C, the pHs and potential (Es) of the standard solution are 8 and 400 mV, respectively. What is the pH of a test solution if its potential (Ex) is 800 mV?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What is the pH of the solution at the cathode if the standard electrode potential equals...
What is the pH of the solution at the cathode if the standard electrode potential equals –0.362 V for the following electrochemical cell at 25 °C?                                                  Pt | H2(g, 1.0 atm) | H+(aq, 1.00 M) || H+(aq) | H2(g, 1.0 atm) | Pt
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...
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the...
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode (P(H2) = 1 atm) immersed in a solution of unknown [H+]. If the cell potential is 0.179 V, what is the pH of the unknown solution at 298 K?
A pH meter employs a voltaic cell for which the cell potential is very sensitive to...
A pH meter employs a voltaic cell for which the cell potential is very sensitive to pH. A simple (but impractical) pH meter can be constructed by using two hydrogen electrodes: one standard hydrogen electrode and a hydrogen electrode (with 1 atm pressure of H2 gas) dipped into the solution of unknown pH. The two half-cells are connected by a salt bridge or porous glass disk. a)Write the half-cell reactions for the cell. 1) No reaction. 2) H+(aq,1M)+H2O(l)→H3O+(aq), H2(g)→2H+(aq,1M)+2e−. 3)...
1) If I need to make voltaic cell with standard potential 1.477 V using Pt electrode...
1) If I need to make voltaic cell with standard potential 1.477 V using Pt electrode and aqueous solution (with salt bridge), which one should I choose for other electrode out of these option? Co (s), H2(g), Pb(s), Al(s), Li (s) 2) From O2 (g) + 4 H+ (aq) + 2 Fe (s) → 2 H2O (ℓ) + 2 Fe2+ (aq), E°cell = 1.670 V, how can I get ΔG° of the redox rxn, corrosion of iron in by oxygen?...
A 50 mL aliquot of water containing sodium fluoride is analyzed using a fluoride ion electrode...
A 50 mL aliquot of water containing sodium fluoride is analyzed using a fluoride ion electrode and the MSAs. The pH and ionic strength are adjusted so that all fluoride ion is present as free F- ion. The potential of the ISE/reference electrode combination in a 50 mL aliquot of the water was -0.1805 V. Addition of 0.5 mL of a 100 mg/L F- ion standard solution to the beaker changed the potential to -0.3490 V. Calculate the concentration of...
Using standard electrode potentials calculate ΔG∘rxn and use its value to estimate the equilibrium constant for...
Using standard electrode potentials calculate ΔG∘rxn and use its value to estimate the equilibrium constant for each of the reactions at 25 ∘C. Pb2+(aq)+Mg(s)→Pb(s)+Mg2+(aq).
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...
At 25 °C, you conduct a titration of 15.00 mL of a 0.0460 M AgNO3 solution...
At 25 °C, you conduct a titration of 15.00 mL of a 0.0460 M AgNO3 solution with a 0.0230 M NaI solution within the following cell: Saturated Calomel Electrode || Titration Solution | Ag (s) For the cell as written, what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V. The standard reduction potential for the reaction Ag+ + e- --> Ag(s) is...
The Standard Hydrogen Electrode (S.H.E.) consists of H2 gas bubbled through a solution of H+ ions;...
The Standard Hydrogen Electrode (S.H.E.) consists of H2 gas bubbled through a solution of H+ ions; which of the following conditions must be met to give E0 = 0.00V, as part of the S.H.E.? I. Temperature of cell is 298 K II. Pressure of the Hydrogen gas is 1 atm III. Concentration of H+ is 1.0 moldm-3 Select one: a. I and II only b. I and III only c. I only d. I, II and III Use the data...