Prepare a Potential Diagram for pH=1.0 and 10.0 based on the following Selenium Pourbaix Diagram. Label the oxidation state of selenium at each step in your potential diagram. Generate a Frost-Ebsworth Diagram for pH = 1.0 and 10.0.
Q: Discuss the importance of the major steps in the aspirin synthesis, melting point determination, and…
A: Interpretation: Aspirin is a painkiller which can be synthesized when salicylic acid reacted with…
Q: What is the method of separation or chemical reaction of a 500 g calcium polysulphide and a 1.5 kg…
A: Answer - According to the question - Given - Calcium polysulfide (CaS5) is also Anti-Infective…
Q: 12. The species depicted in the Frost diagram will tend to go under what kind of reaction? Ovidon…
A:
Q: Explain the conditions that cause the reduction of metal hydrates occurring in the Fehling…
A: Fehling test: It is the chemical reagent that performs the function of distinguishing reducing and…
Q: Give equations and explanations for Brown Anson analysis
A: Electroanalytical methods are class of techniques in analytical chemistry which study an analyte by…
Q: A silver nitrate soluti on contains 14.77 g of primary standard AGNO3 , in 1.00 L what volume of…
A: Given mass of AgNO3=14.77gvolume of Na2S=50.00 mLMolarity of NO2S=0.01808 M
Q: What weight of the soda ash (impure Na2CO3) should be taken for analysis in order that the number of…
A: 1 mol Na2CO3 (or CO32-(aq)) reacts with 2 moles of acid H+(aq). The balanced equation is:…
Q: To determine the percent purity of a sample containing iron(II) ammonium sulfate; Suggest , 2…
A: The question is based on the concept of quantitative analysis. we have to quantitatively estimate…
Q: 100.0-mL sample of a saturated PbSO4 solution was evaporated until dry. If 24 mg of solid PbSO4 was…
A: Given, Volume of slution =100 mL Mass of PbSO4 = 24mg = 24 ×10-3 g Molar mass of PbSO4 = 303.26…
Q: The use of dilute nitric acid as a washing liquid
A: The use of dilute nitric acid as a washing liquid :-
Q: What weight of the soda ash (impure Na2CO3) should be taken for analysis in order that the number of…
A: Molarity is defined as the number of moles of the solute divided by the volume of the solution in…
Q: Explain the features of hydroboration–oxidation ?
A:
Q: What is the purpose of heating the acid solution with the antacid to boiling? Why is this a…
A: Since the tablet contains a carbonate, the neutralization reaction produces carbon dioxide. Because…
Q: When Br2 dissolves in hexane, the hexane layer is ____________. Orange Yellow…
A: Here We have to find out colour of hexane layer when we dissolve in halogen in it Here given halogen…
Q: You prepared a 500-mL 1.00 M KOH reagent, which container should you store it in? Justify your…
A: In case of chemistry lab there are two types of standard. One is primary standard and another one is…
Q: Calculate the saturation indices of the solutions describe below and classify each as…
A: The solution can be classified as under-saturated, supersaturate or in equilibrium as per the below…
Q: Which is the principle species in EDTA solution at pH 7? H2Y2- H4Y H3Y- HY3- Y4-
A: According to the graph, the principle species in EDTA at pH 7 is HY3-.
Q: Give the function and purity for chemical reagent of Primary Standard Grade.
A: ✓primary standard is a reagent that is very pure, stable, not hygroscopic, and has a high molecular…
Q: After completing Experiment# 2, a student determined that the total concentration of reducible…
A: Given that : The total concentration of reducible iodine = 0.01691 M The concentration of iodine in…
Q: Show the full reaction and mechanism corresponding to the reduction of [Fe(phen)3]³+ k [Fe(CN)6] via…
A:
Q: Give equations and explanation for Brown Anson analysis
A: In electrochemistry, there are two major categories of cell reactions. In the first category, the…
Q: visualization methods
A: In this question we have to choose correct option of that which is not visualization methods involve…
Q: What was the function of the anhydrous calcium chloride? Illustrate this function by completing this…
A: Drying agent is also called a desiccant, which removes water or moisture from the atmosphere.
Q: Compare the energetic favorability of MnO2 reduction by sulfide yielding S0 to the energetic…
A: Energetic favorability can also be discussed in the term of cell potential because the cell with…
Q: Write a detail note on Baeyer-Villiger oxidation, Write its applications.
A: Baeyer - Villiger Oxidation is an organic reaction to synthesize an ester from ketone or a lactone…
Q: How to prepare 4% (wt/vol) strontium chloride stock solution?
A: Concentration of strontium chloride = 4%(w/v)
Q: What was the solvent used in the preparation of the standard stock solutions? Water Methanol Mobile…
A: methanol
Q: Explain the reaction involved in the determination of dissolved oxygen in water using Winkler…
A: The Winkler Method is a technique used to measure dissolved oxygen in freshwater systems. Higher…
Q: Adding acidified potassium permanganate on an unidentified sample, violet color is discharged which…
A: Potassium permanganate is an oxidizing agent.
Q: What do you think is a limitation of the flame test in identifying metal ions in solution?
A:
Q: briefly explain why it is necessary to be careful when disposing of the filter paper salt bridges
A: In a galvanic cell, a device which is connected between the oxidation and reduction half cell is…
Q: Plumber's solder is composed of 67% lead and 33% tin by weight. Describe what happens to this…
A: Plumber's solder is composed of 67% lead and 33% tin by weight.
Q: Reaction E ( CuSO4(aq) + Mg(s) --> Cu(s) + MgSO4(aq) ). Speculate on the identity of this white…
A: In this case, a displacement reaction takes place. The magnesium when reacted with copper sulfate…
Q: If i cannot use ammonia water, what can i use as a substitute to make my acid supernatant to be an…
A: Given, After being macerated with 95% ethanol and dissolved in 5% acetic acid, I got an acid…
Q: Provide a flowchart (containing added reagents + possible ions)
A:
Q: Permanganate Test (Baeyer's Test) Place 10 drops of test compounds in separate test tubes. Add 5…
A: Organic qualitative analysis is used to determine the composition of organic molecules and…
Q: What is the element indicated by the residue formed in the charring test? 2. How do the…
A: Q.1 What is the element indicated by the residue formed in the charring test? Ans: Charring is a…
Q: The following complexation reaction was carried out by using 2.5 g of cobalt(II)nitrate hexahydrate…
A: Since you have asked multiple questions, we will solve only first question for you. If you want any…
Q: The unknown solution in test tube #1 plus (NH4)2SO4 gives no reaction. The solution in test tube #1…
A: A white precipitate is formed when Na2HPO4 and NaOH is treated with solution in test tube #3, it…
Q: diagram for Thallium Tl3+ /Tl+ = 1.25 V Tl+ /Tl = -0.34 V a) Indicate which is…
A: 1)Due to inert pair effect thallium have +1 oxidation state Or ∆G=-nRTE°cell Reaction will go for…
Q: A.No.2: Briefly discuss with flow diagram ,the manufacturing process of any one of the acidic…
A: The substance that can exhibit intense resistance to the variation of the temperature, the pressure…
Q: Illustrate Sandmeyer’s reaction with the help of a suitable example.
A:
Q: Which oil - olive oil or coconut oil - would you expect to have a higher peroxide value after…
A: The peroxide value indicates the amount of peroxide generated in an oil sample by exposure to…
Q: After completing Experiment#2, a student determined that the total concentration of reducible iodine…
A: Given data : The total concentration of reducible iodine = 0.01691 M The concentration of iodine in…
Q: Give the rule in reading the meniscus when measuring colored and colorless solutions.
A: The rule in reading the meniscus when measuring colored and colorless solution is given below.
Q: 12.1 g of goztic acid was dissolved in water weighing 87.9 G. The mass fraction (%) of acid in the…
A: Mass fraction and mass percentage can be calculated as follows:
Q: involved Deasphalting, Visbreaking, Hydrocracking, Fluid Coking, Production of high-quality gasoline…
A:
Q: Calculate the saturation indices of the solutions described below and classify each as…
A: We need to investigate the ion activation product for each species mentioned.
Q: Give and explain two precautions in brine solution experiment.
A: Brine solution also known as Sodium Chloride Solution. While doing any experiment involving to brine…
![Question #4:
Prepare a Potential Diagram for pH = 1.0 and 10.0 based on the following Selenium
Pourbaix Diagram. Label the oxidation state of selenium at each step in your potential
diagram. Generate a Frost-Ebsworth Diagram for pH = 1.0 and 10.0.
1.2
HSea
1.1
1.0
0.9 -
Seo
0.8 -
H,Seo,
0.7
0.6
0.5 -
0.4 -
HSeoj
0.3 -
0.2
Se
0.1
0-
Seo
-0.1 -
-0.2
-0.3 -
-0.4
H,Se
HSe
-0.5 -
-0.6 -
-0.7 -
-0.8
1
3
5
6
7
9
10
11 12 13 14
pH
[A] 3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2e874e88-4208-46db-9337-5903f51df88a%2F6a44f009-d87e-4ed5-9c4a-1a920e600104%2Fblteyf_processed.jpeg&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
- One of the types of first generation pesticides contained arsenic. An analytical analysis for arsenic was to convert to AsO4-3 and precipitate with Ag+, yielding Ag3AsO4(s). What is the oxidation state of arsenic in this precipitate? Group of answer choices -5 -3 0 +3 +5a) Chlorine is disproportionate in basic medium. And in an acid medium? Write both reactions and calculate the final potential, indicating if they are thermodynamically favorable (See Frost diagram) ClO- /Cl2 = 0.42 V HClO /Cl2 = 1.63 V Cl2 /Cl- = 1.36 V b) Use the Latimer diagram of chlorine in acid medium to determine the potential corresponding to the reduction of ClO4 - to Cl2. Write the fitted equation of this reaction.The iodine produced when excess of KI was added to the solution containing 0.1259 g K2Cr2O7 required a 41.26 mL titration with Na2S2O3 required a 41.26 mL titration with Na2S2O3. P.S. Be able to answer numbers 1 and 2 ONLY. 1. Determine if it is basic or acidic and write the balance redox reaction for the reaction of dichromate ion with iodide ion in acidic medium. Unbalance equation: Cr2O72- (aq) + I- (aq) → Cr3+ + I2 (aq) 2. Determine if it is basic or acidic and write the balance redox reaction of iodine with sodium thiosulfate in acidic medium. Unbalance equation: S2O3 2- (aq) + I2 (aq) → S4O6 2- (aq) + I- (aq) 3. (i) What are the oxidizing agents in #1 and #2? (ii) What is the stoichiometric ratio between dichromate and thiosulfate? 4. Calculate the molar concentration of the thiosulfate solution.
- The F− concentration of a solution was determined by measurements with a liquidmembrane electrode. The electrode system developed a potential of 0.5021 V when immersed in 25.00 mL of the sample, and 0.4213 V after the addition of 2.00 mL of 5.45 x 10−2 M NaF. Calculate pF for the sample.Note: pF is the negative logarithm of [F].A cell consisting of a saturated calomel electrode and a lead ion electrode developed a potential of -0.3257 V when immersed in a 60.00 mL lead solution of unknown concentration. A 10.00 mL addition of 0.02500 M lead standard solution caused the reduction potential to shift to -.2897 V. Calculate the molar concentration (in units mM) of lead in the sample. Please make sure to perform necessary calculations to have a final answer in mM.A glass / calomel electrode system was found to develop a potential of - 0.0412 V when used I a buffer of pH 6.00; with an unknown solution the potential was observed to be - 0.204 V. Calculate the pH and the [H+] of the unknown. The following cell was employed for the determination of pCrO4: SCE // CrO4 2-(xM) / Ag2CrO4 (s) / Ag (s) Find the pCrO4 if the cell potential is - 0.402 V (E0 Ag/Ag2CrO4 = - 0.316 V ; E SCE = 0.241 V)
- please answer what you can. thank you so much in advance. :) Standardisation of EDTA using zinc metal Mass of zinc = 1.050 g. Calculate the number of moles of zinc in the 250 mL flask (show workings) Calculate the concentration zinc in the 250 mL flask (show workings) Calculate the number of moles of Zn2+ in the 20 mL aliquot (show workings) Calculate the number of moles of EDTA in the average titre (show workings) Calculate the concentration of the DILUTED EDTA solution (show workings) Sample No. 1 2 3 4 Final Burette reading (mL) 20.25 42.75 22.90 44.50 Initial Burette reading (mL) 0.05 20.25 1.50 22.90 Final-Initial Titre (mL) 20.20 22.50 21.40 21.60Give only typing answer with explanation and conclusion 0.1745 g of primary standard Na2C2O4 is used to set a freshly prepared KMnO4 solution and 30.24 mL of KMnO4 solution is spent at the turning point. Since 36.92 mL of this KMnO4 solution is consumed for the determination of iron in 0.5618 g ore sample, calculate the amount of iron in the ore in terms of % iron (III) oxide and % iron (III) chloride. (Fe: 56, K: 39, Mn: 55, O: 16, Na:23, C: 12, Cl: 35.5 g/mol)For indicator electrodes, which statements are true?I Indicator electrodes are made from relatively inert metals.II Indicator electrodes work best when the electrode surface is large and clean.III Platinum is a common indicator electrode.IV Platinum electrodes are more inert than gold electrodes. A. I, III, and IV B. I, II, and III C. I, II, III, and IV D. II and III E. I, II, and IV
- The cell SCE//Ag2CrO4(sat’d), CrO4-2 (x M)/Ag is used for the determination of pCrO4. The half reaction at indicator electrode Ag2CrO4 (s) + 2 e- -> 2 Ag(s) + CrO4 -2(aq) E=0.446 Calculate pCrO4 when the cell potential is 0.402 V. Show your calculations by uploading your solutions.acid dissociation constants for H3PO4 (Ka1 = 7.11 × 10-3, Ka2 = 6.32 × 10-8, Ka3 = 7.1× 10-14), calculate standard reduction potential for the half reactionH2PO4- + H+ + 2e HPO32- + H2OWrite a charge balance for H2SO4 in water.