Define the term pH. Which electrode do you use? Draw a scheme and describe the principle of pH measurement. Express the limitations of the electrode used.

Q: What is the importance of calibrating pH electrode and weighing balance during buffer preparation?…

A: Answer - According to the question - It is important to calibrate your pH meter regularly to ensure…

Q: Find the molar concentration of Pb2+ ions (in M) in a solution made by adding 5.00 g of lead (II)…

A: Given that, 5 g lead(II) iodide (PbI2) is added to 500 mL of 0.1 (M) CaI2 The solubility product of…

Q: Part B During the reaction, 4.10 μmol of HCl are produced. Calculate the final pH of the reaction…

A: Given Data:A biochemical reaction took place in a 1.00 mL solution of 0.0250 M phosphate buffer…

Q: A volume of 500.0 ml. of 0.110 M NaOH is added to 585 mL of 0.250 M weak acid (K,= 8.02 x 10-5).…

A:

Q: A volume of 500.0 mL of 0.140 M NaOH is added to 545 mL of 0.200 M weak acid (K₁ = 3.65 × 10-5).…

A: Given,  A volume of 500.0 mL of 0.140 M NaOH is added to 545 mL of 0.200 M weak acid (Ka = 3.65 x…

Q: Gravimetric assay of Ba-ions involves step of precipitation by: H2SO4 NaOH AGNO3 HCL

A: The Given barium chloride solution is made up to a definite volume. A measured volume of it is then…

Q: 6mL of 125mM EDTA was added to 244mL of water.  The resulting solution was added to 219mL of water…

A: MW of EDTA =292.24 g  initial molarity of EDTA = 125mM

Q: A 50.00 mL 0.750 M KOH(aq) is added to a 100.0mL 0.500 M CH;COOH/NACH;CO0 buffer. What is the…

A:

Q: how does the electromotive force of the galvanic element Pb / Pb2 + // Ag + / Ag change if hydrogen…

A: The Galvanic cell given is Pb / Pb2 + // Ag + / Ag  The reactions involved at electrodes are At…

Q: Q13. In an experiment to determine the rate constant of hydrogen peroxide hydrolysis reaction, which…

A:

Q: pH meter. Electrode Unbuffered Buffer Unbuffered Buffer H,O pH 7.0 H,O pH 7.0 Add 1 mL 0.1 MHCI Add…

A:

Q: B: What is the pH of 0.6 M NH,Cl solution? Discuss your results. (K of NH= 1.8 x 10 NH4+ + H2O+→…

A: Firstly, write the equilibrium constant for the given reaction. It is calculated by dividing the…

Q: Calculate the mean activity coefficient / for Ba² and SO² ions in ion of BaSO4. Assume the ionic…

A: When ionic compound dissolved in water it dissociate in to ions

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: −131.23kJ/mol ,indicating it is spontaneous under standard conditions, releasing 131.23 kJ of free…

Q: From the titration of 50.00 mL of FeSO4 0.2500 mol L-1 with a solution of K2Cr2O7 0.1000 mol L-1…

A: The balanced chemical equation for the reaction between Fe2+ (from FeSO4) and K2Cr2O7, in acidic…

Q: The pH and Kh of 0.1N NH4CI solution, if Kb for NH4OH at 25°C is 1.8x10-5 will be respectively equal…

A: pKb = - log Kb = - log ( 1.8 x 10-5) = 5 - 0.26 = 4.74 C = 0.1 N For salt NH4Cl pH = 0.5 (pKw  - pKb…

Q: Q12. When plotting [A], versus time, In[A], versus time, and 1/[A], versus time, the calculated…

A: The order of a reaction describes the relationship between the rate of the reaction and the…

Q: Trilonometric determination of Pb (back titration) requires pH: 9,5-10; 0-2; 11-13,5; 6,5-10,3;

A: PH  ranges from 9.5 - 10

Q: Which acid is most likely to reduce the conductivity to near zero at the equivalence point when it…

A: Answer:- This question is answered by using the simple concept of titration of acid and base and…

Q: A solution of 89.1 ml of 0.00185 M A1B3 is mixed with a solution of 49.44 ml of 0.00800 M C1D3. Find…

A: The objective of the question is to calculate the value of pQ for the formation of .The…

Q: A saturated solution of AgI contains 0.05 M KNO3. The Ksp for AgI is 8.3 x 10-17 . As a first…

A:

Q: Coulometry - H₂S can be analyzed by titration with coulometrically generated 12 The 12 is generated…

A: The given reactions are  2I-(aq) →I2(aq)+2e-H2S(aq)+I2(aq)→S(s)+2H+(aq)+2I-(aq)

Q: Q14. A plot of a Langmuir adsorption isotherm (C/q. vs 1/Q.) for an adsorption process, gives a…

A: To calculate the value of Qo , we would first use the linear form equation of Langmuir adsorption…

Q: 10. If the 0.08 Molar HCI underwent two fold serial dilution three times, the pH of the final…

A:

Q: 12.What is the pH of a 0.001 0M HNO, solution with an ionic strength of 0.05 M? At µ = 0.05) Y#. =…

A: Concentration of HNO3 = 0.0010M

Q: What is the function of the vacuum aspirator? Predict the color shift of the indicator as a…

A: Aspirator is a tool which uses suction to remove or collect something specially in medicine for…

Q: Calculate pBr for a solution that is 4.62 x 10-3 M in KBr and 1.78 x 10-3 M in BaBr, 1. O2.09 2.…

A: From given datas  Initially reaction is given and from that we found how many Br- produced for each…

Q: The emf of the indicator electrode changes gradually with the change of concentration of ions caused…

A: True

Q: What is the pH of 0.0800 M Fe(NO3)3 (Ka of Fe3+ = 3.00x10-3)? Express your answer to two decimal…

A:

Q: Q16. What is the mass % of A) 60%A, 10%C C) 30%A, 20%B components A, B and C at the point x? B) 10…

A: Given is a ternary phase diagram, also called the Gibb's phase triangle, consisting of three…

Q: 3- 13.7. Calculate the ratio of molarities of PO and HPO 2 ions in a buffer solution with a pH of…

A:

Q: Q17. Adsorption isotherms are models constructed at constant: A) concentration B) dose of adsorbent…

A: Question 17 as specified.

Q: C: Determination of Ka of a Weak Acid: 25 mL of 0.01 M acetic acid solution is mixed with 25 mL of…

A: We would use Henderson Hasselbalch equation to calculate pKa and using pKa we can calculate Ka.

Q: Indicator Measurement Colour of Indicator phenol red pOH = 6.8     Indicator Measurement Colour of…

A:

Q: None

A: Step 1 Step 2 Step 3 Step 4

Q: A reaction A = B has a biological standard Gibbs energy of +100 kl mol-¹ at 298 K. If the reaction…

A:

Q: Define the term pH. Which electrode do you use? Draw a scheme and describe the ciple of pH…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Make the correction:

A: Calculated pH for NaOH solution is very fine and very correct hence their is no need of…

Q: How much pH should be at least for Cr(OH)3 to collapse from a solution containing 0.076 M CR3+…

A:

Q: You need to prepare a solution that is buffered at pH=9. If you were to look for a suitable buffer,…

A: Our target pH is 9. The best buffer solution to be selected for a desired pH has the below…

Q: If an Ecell of 0.495V was noted when your cell was set-up. What is the solution pH?

A: pH = Ecell/0.0951

Q: (b) In the pH metric titration, calomel and glass electrodes are used for measuring. What are the…

A: