1. In the standardization of the Na,S,0, solution, if you did not titrate the liberated iodine immediately, how would this likely have affected the value of the molarity you calculated? Explain.
Q: A student adds too much HCI during the titration. Will the calculated Ksp be too high, too low, or…
A: Given that HCl is added in excess during the titration. Since HCl is a source of H+(aq) that reacts…
Q: Explain how the reported solubility product of borax will be affected if the solid borax is…
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Q: The digestion of a 0.1387-g sample of a phosphorus containing compound in a mixture of HNO, and…
A: Solution: Given: Mass of the sample containing phosphorus = 0.1387 gMolarity of NaOH solution =…
Q: The chloride in a sample containing approximately 3.5 % NaCl is to be determined gravimetrically as…
A: The chemical equation representing the reaction for the formation of AgCl is shown below. The mass…
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Q: 7. Define back-titration. What is the concept behind this method?
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Q: 0.9563 g KHCO3 (M.r.(KHCO3) = 100.12 g/mol (mg/mmol)) have measured, and 50.0 cm3 stock solution…
A: Neutralization reaction is a reaction between acid and base to form salt and water. A monoprotic…
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: The Mohr indicator is chosen for an arbitrary titration. Which of the following statements would be…
A: Here we have to find a incorrect statement regarding the solution to be titrated-
Q: True or False: Blank titration is indicated for the determination of the concentration of a sample.…
A: A blank titration gives an idea of how much titrant is needed to the titration with sample. The…
Q: The addition of hydrochloric acid to the solution of containing silver group of cations is to…
A: Silver(Ag+), lead(Pb2+) and mercury(Hg22+) are grouped together and are called group 1…
Q: A 4.0520g sample of hydrochloric acid, sp. Gr. 1.18, required 44.15ml of 0.9035N sodium hydroxide in…
A: Note - “Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: 500 mL of river water was subjected to sulfate determination by the barium gravimetric method. The…
A: The sulfate ions present in the river water are precipitated as barium sulfate. The volume of water…
Q: In a redox titration involving potassium permangante with oxalic acid, What is the purpose of the…
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Q: to Y16! What weight of sample which contains 56.15 per cent Cl was taken for analysis if the…
A: Ag+ + Cl- -------> AgCl(s) Mass of AgCl ppt = 0.5017 g Molar mass of AgCl = 143.3 g/mol moles of…
Q: During the demonstration, before each metal was added to the water, a drop of an acid-base…
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Q: From the given information, determine which ions are present. Use + for positive, - for negative,…
A: We have to tell which cations are present or not in given mixture analysis
Q: (c) Suppose this 0.05 M stock solution was left on the counter, open, overnight before generating…
A: The Solution of CoCl2 is stored at 4 to -20°C for the stability of the concentration. As the…
Q: A saturated AgCl solution was analyzed and found to contain 1.25 x 10-5 M Ag+ ions. Use this value…
A: We know that, Ksp is the solubility product of any salt, and is as below : For a reaction, AgCl…
Q: Q12) A solution may contain one or more of the following ions and no other ions: Ag", Cu", Ca",…
A: According to formal group analysis for cations Ag+Silver and lead Pb+2 ions do not get precipitated…
Q: How will the reported solubility product of borax be affected if the solid borax is contaminated…
A: Step1: The borax has following molecular formula as: Na2B4O7.10H2O It is dissociates in water to…
Q: What will be the molar analytical concentration of Na2co3 in the solution produced when 25.0 ml of…
A: Given, The volume of AgNO3 = 25.0 ml The molarity of AgNO3 = 0.200 M The volume of Na2CO3 = 50.0 ml…
Q: How will the reported solubility product of borax be affected if some of the solid borax is…
A: Given that some of the solid borax is inadvertently transferred into the Erlenmeyer flask and…
Q: Descriptors that apply to a solution of NaNO2
A: We have to tell about the solution of a NaNO2.
Q: 1. The addition of azide salt in the determination of dissolved oxygen in a given water sample is *
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Q: Titration of 0.1756 g of primary standard Na2C2O4 (anhydrous) required 32.04 mL of a potassium…
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Q: Use the data below to determine the % by mass of Fe to TWO decimal places, if a 0.021 M KMnO…
A: the correct answer is as follows:
Q: In the following experiment, you will titrate 2.00 mL of 0.0100 M KMnO4 in base with 0.0200 M…
A: Given: Volume= 2.00 mL= 0.002 L Molarity of KMnO4= 0.0100 M Molarity of NaHSO3= 0.0200 M
Q: Gravimetric Analysis. Please show complete solution. Thank you 1.) A 0.8870 g sample containing…
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Q: Q 52
A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…
Q: Which is a highly purified compound that serves as a reference material in titration? O reference…
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Q: one experiment, 18.72 mL of the 0.1981 M Ce** solution is required to react completely with 25.00 mL…
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Q: A 0.5264-g sample containing KBr is dissolved in 50 mL distilled water. Titrating with 0.04738 M…
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Q: 1. What is the role of chromate ions in chloride determination? 2. Why pH range is important in…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Why a filter paper cannot be utilized for the removal of potassium permaganate precipitate?
A: Filter paper can be defined as a semi-permeable paper that helps us to separate fine solid particles…
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: 95.Reaction of acid and base always produce and 96. The concentrations of standard solution in…
A: 95. Solutions of acid and bas always produces salt and water. 96. The concentration in…
Q: A sample containing only NaCl and KCI was treated with AgNO,.. The sample weighed 0.5325 grams.…
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Q: Why is it normal to add a slight excess of silver nitrate solution when precipitating chloride ion?
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Q: The NaOH titrant in this experiment was prepared to be approximately 0.1 M and then was…
A: Given that, in an experiment, approximately 0.1 M of NaOH solution was prepared and then was…
Q: What is the Sample, Analyte, Reagent added in excess, and Reagent used in an example of back…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: You have a sample of approximately 100 mg/L of calcium carbonate and the standardized EDTA has a…
A: To find out that we can use sample directly or not. First we will check for 25 mL of sample, how…
Q: 2. In a typical titration, someone needs to "standardize" the solution of the titrant-i.e., to…
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Q: In order for all of the analyte to be consumed completely, an excess of a reagent has to be added.…
A: Introduction: Aspirin is acetylsalicylic acid. It contains only one acidic hydrogen. So, 1 mol…
Q: Use water to rinse the sides of the Erlenmeyer flask containing the analyte. It will dilute the…
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Q: How would your experimentally determined vinegar concentration have differed if the tip of the…
A: The purpose of this investigation was to determine to molar concentration of acetic acid in vinegar.…
Q: After mixing 5.00 mL of the 5.0×10–5 M crystal violet solution with 5.00 mL of 0.20 M NaOH, what is…
A: Volume of crystal violet solution = 5.00 mL Concentration of crystal violet solution = 5.0×10-5 M…
Q: What is the acid/base ratio? Why is it important in the titrimetric process?
A: Acid base ratio is the exact amount of acid and base required to obtain a desired pH. This value can…
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- a. Why was HCl added to the unknown sulfate solution before adding the BaCl2 solution? b. Suppose that a small portion of the sulfate precipitated as lead sulfate rather than as barium sulfate. How would this change the result of the analysis?Summarize a procedure that will allow you to accurately prepare a series of solutions that are of the following molar concentrations (0.1, 0.05, 0.025, 0.0125, and 0.00625) from 0.200 M stock solution.For titration, what is the purpose of a dropwise rate?
- How will the reported solubility product of borax be affected if the solid borax is contaminated with NaCl?How would the determined concentration of your unknown sample be affected - increased, decreased, or stayed the same - if during the transfer of the metal salt into the 5 0 m L volumetric flask you spilled some by accident ? Explain.The Zn in a 0.6185 g sample of foot powder was titrated with 23.74 mL of 0.01485 M EDTA. Calculate the % Zn in this sample. Answer: %Zn = ____ %
- A 25.0 mL sample of vinegar was analyzed via titration in the same manner as you will use in this experiment. The standardized solution of NaOH was 0.950 M. A total of 10.5 mL of the sodium hydroxide were required to reach the pink endpoint. What was the concentration of the acetic acid in the vinegar solution?The NaOH titrant in this experiment was prepared to be approximately 0.1 M and then was standardized to determine its exact concentration. What possible reasons could there be for not simply weighing the solid NaOH, dissolving to a known volume and calculating its molarity?Explain how the reported solubility product of borax will be affected if the solid borax is contaminated with NaCl.
- In order for all of the analyte to be consumed completely, an excess of a reagent has to be added. If 10.00 mL of a 0.1000 M HCl is needed in the back titration, what volume of a 0.5000 M NaOH should be added to a sample that contains 2.000 mmol of aspirin2. In the preparation of the titrant, the solution must be aged for at least 24 hours in the dark. State in just 1 sentence why this step must be done.1. If a sample of silver coin weighing 0.2500 g gives a precipitate of AgCl weighing 0.2991 g, What wt of AgCI could have been obtained from the same wt of sample?