Q: What are the pertinent chemical equations in the standardization of sodium thiosulfate solution?
A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…
Q: 4. If 49.8 mL of 1.08 M HCl is mixed with 50.1 mL of 1.02 M NaOH, which is the limiting reagent?
A: Limiting reagent: The reactant which is completely consumed when the reaction is allowed for…
Q: A student used a pipette to place 25.00 mL of HCl into an Erlenmeyer flask. Then the student diluted…
A: Answer :- B. Water in the burette The most probable explanation for the variation in the student's…
Q: What volume of 8.50 M NaCl solution needs to be diluted to produce 400.0 mL of 2.00 M NaCl solution?
A: In case of dilution of any electrolyte, the following relation is used : MiVi = MfVf
Q: Which of the following statements is true? A Liquids can be weighed using a weighing paper. B In…
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Q: What mass of precipitate will be produced from the reaction of 50.0 mL of 2.50 mol/L sodium…
A: When sodium hydroxide reacts with zinc chloride it form precipitate of zinc hydroxide.
Q: What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4 solution?…
A: The balanced chemical reaction between the silver nitrate and sodium sulphate is shown below.
Q: Calculate the volume you must dilute to make 200.0 mL of 0.50 M BaCI, from 4.0 M original stock…
A: Initial concentration of BaCl2 (M1) = 4.0 M Initial volume (V1) = V ml Final concentration (M2) =…
Q: 8. Why should you boil the sample solution right before reaching the end point?
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Q: Find the molar concentration of 23.5% w/w LiBr solution (Density = 2.05 g/mL)
A: Given : w/w% = 23.5 % Density = 2.05 g/ml
Q: Why should you know the composition of the weighing form? So that it can be filtered properly…
A: Please find your solution below : Gravimetry is a method used for the quantitative determination of…
Q: Why is it all right to use a wet flask or to use water during the titration?
A: It has to be clean and dry so you have the right amount of solution taken out from you flask to be…
Q: 5. When you take 20.0 mL of 6.0M HNO3 and dilute to a final volume of 300.0 mL?
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Q: . What is the weight of the sample in trial 1? 2. What is the average weight of the precipitate in…
A: 1. Weight of sample=Weight of bottle before removing the sample-Weight of bottle after removing the…
Q: What volume of 0.825 M MnO4– is needed to completely react with 50.0 mL of 0.502 M Fe(II)?
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Q: A 0.5008-g sample that assayed 95.9% Na2 SO4 required 48.40 mL of a barium chloride solution.…
A: Given: Mass of Na2SO4 sample = 0.5008 g. Percent by mass of Na2SO4 in sample = 95.9 % And volume of…
Q: Diluting 50.0 of 3.00 M NaOH to a total volume of 500.0 mL, what is the resulting concentration…
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Q: Given Chemist needs to add 0.381g of N9₂003 (106g/mol) to a reaction mixture. the volume (me) Find…
A: Molarity of a solution is defined as the number of moles of solute present in 1 litre of a solution.…
Q: 5. Why is it important that your glassware be dry for Part 2? Postulate as to what would have…
A: This is an equilibrium reaction, and the colour of the solution depends on the compounds present at…
Q: A bottle is labeled 0.26 M KMNO4. The KMNO4 will be used in the same reaction a. took place in this…
A: In this question, we want to determine the volume of the Solution, approximately, must be used to…
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A: A 50.0 mL saturated solution was prepared. After filtering each solution, a 5.0 mL aliquot was…
Q: Why is an Erlenmeyer flask preferred over a beaker when performing a titration?
A: Erlenmeyer flask has tapered sides thus it makes more accurate titration than that is from breaker .…
Q: 01: Find the weight of NA2C204 (FW= 134.00 g/mol) required to prepare 250 mL of 0.1000 M NazC204…
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Q: The weight of saturated NaCl was obtained by weighing the collected solid. Was this an accurate…
A: Mass percent is the mass of solute added in 100g of solution. mass percent = mass of solute mass of…
Q: At the start of a titration experiment, a student took a buret reading of 1.65 mL. At the end of the…
A: The student took the following readings: The initial reading, V1=1.65 mL The final reading, V2=22.40…
Q: Is there a need to balance the reaction first before proceeding with the solution?
A: There is no need to balance the reaction before proceeding with the solution. However, we need data…
Q: What volume of 6.0 M KNO3 would be required to create 700.0 mL of a 0.75 M KNO3 solution
A: Molarity of solution required M2 = 0.75 M Volume of solution required V2 = 700.0 mL Molarity of…
Q: What size volumetric flask would you use to create a 0.05 M solution using 10.00 g of CaBr2?
A: The given data contains, Molarity = 0.05 M. Mass = 10.00 g.
Q: Why use plastic reagent bottle for the storage of the standard NaOH solution instead of typical…
A: NaOH is a base. It is hygroscopic in nature. Hygroscopic means tends to absorb moisture from air.…
Q: Calculate the mass in grams of solute in 235 mLof 1.25 M sulfuric acid solution.
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Q: 9. What volume, in mL, of 0.50 M K3PO4 could be prepared using 1.00x10² mL of 0.95 M K3PO4?
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Q: What concentration of Br−results when 641 mL of 0.733 M KBr is mixed with 703 mL of 0.505 M FeBr2?
A: The concentration of Br- ion in the mixture containing 641 mL of 0.733 M KBr and 703 mL of 0.505 M…
Q: 1.In using a burette, why is it important (a) to rinse it with a little of the solution it is going…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: B. Determining the Composition of a Mixture of Sodium Chloride and Sodium Nitrate Partner I Prepare…
A: Given the mass of the solid mixture containing NaCl and NaNO3 = 0.103 g Given the w/w % of AgNO3…
Q: Dilute a 35.0 mL glucose solution from 2.26 M to 0.845 M, the final volume will be: O 93.6 mL O 70.0…
A: We know that, V1S1 = V2S2 V1 = initial volume V2 = final volume S1 = initial concentration S2 =…
Q: If 8.0 mL of a 0.40 M NiSO4 solution is needed to prepare 10. mL of 0.32 M NiSO4 solution, how much…
A:
Q: What about any gasses that is created DURING the process of the reactants, and then lost/released…
A: Mg(s) + 2HCL (aq) ------》 MgCl2 (aq) + H2(g)
Q: If the same mass of Na2SO4 (MW: 142 g/mol) and K2SO4 (MW: 174 g/mol) were weighed and used for the…
A: The balanced equation for the formation of the precipitate, BaSO4(s) is: Ba2+(aq) + SO42-(aq)…
Q: Why do we have to measure the boiling point of distilled water during the colligative properties…
A: Colligative Properties depends Upon the Number of solute particles and independent of identity of…
Q: 24. How many mL 12.0M nitric acid are needed to make 625mL 0.11M nitric acid? 25. What is the final…
A:
Q: Trying to determine concentration of sucrose in soda equation for standard curve: y= 0.0186x+1…
A: Given: mass of solution = 54.2060 g volume of solution = 50 mL density of solution = 1.08412 g/mL
Q: A silver nitrate solution contains 14.77 g of primary standard AGNO3 ( Molecular weight 169.87) in…
A:
Q: Precipitation gravimetry : In precipitation gravimetry , the analyte is converted to a sparingly…
A: The statement is True In the precipitation gravimetry the analyte is transformed into the moderately…
Q: How will you separate soluble and insoluble impurities?
A: since the insoluble impurities will be present as precipitate in the solution hence it can be…
Q: Maganite is the leading brand for antacid to alleviate heartburn. Its active ingredient is a…
A: The amount of a substance that resides in a solution determines the concentration of the solution.…
Q: Cesium chloride is used to prepare dense solutions required for isolating cellular components with…
A: Given: Percent by mass of CsCl = 40.0 % And density of solution = 1.43 g/mL. Assuming 1 L i.e. 1000…
Q: In the external calibration method used in water analysis, which volume should be kept constant? *
A: For an external standard quantitation i.e. known data from a calibration standard and unknown data…
Why is it improper to fill a volumetric flask to the calibrated mark with solvent BEFORE adding the solute?
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- Why is it all right to use a wet flask or to use water during the titration?1.In using a burette, why is it important (a) to rinse it with a little of the solution it is going to contain, (b) to clamp it vertically, (c) to have the part below the tap full? 2. The following procedures were carried out during the titration: (a) The sides of the conical flask were washed down with deionized water. (b) The conical flask was frequently swirled or shaken.Why use plastic reagent bottle for the storage of the standard NaOH solution instead of typical glass reagent bottle?
- Consider the following scenario: After the first compound elutes off of the column, you collect multiple fractions without seeing the next compound begin to elute. What change might you want to make before you continue taking fractions?In the recrystalization experiment, why solute is dissolved in the solvent at high temperature and then cooled to recrystalize?In Purification by Recrystallization, why the solution must be filtered while hot?
- Why must a boiling stone be added to a solution to be refluxed?What would be the molarity of the final solution made by mixing 500. mL of 0.50 M ethanol and 250. mL of a 1.3 M solution of ethanol? Report your answer in standard notation and do not include units.In your own words, why the storage bottle should be a dark or AMBER-colored reagent bottle in the preparation of permanganate solution?
- If 8.0 mL of a 0.40 M NiSO4 solution is needed to prepare 10. mL of 0.32 M NiSO4 solution, how much solvent in millimeters needs to be added to the original solution?What should be the volume of concentrated acetic acid that should be measured to prepare 100 mL of solution with a concentration of 0.2 mol/L? (Data: T = 99.7%; d = 1.05 g/cm³; MM = 60.052 g/mol).Would the following procedural errors result in an incorrectly high or low calculated percent NaOCl in the commercial bleaching solution? Briefly explain. a) A student failed to allow the volumetric pipet to drain completely when transferring commercial bleaching solution to the volumetric flask. b) A student blew the last drops of bleaching solution from the pipet into the Erlenmeyer flask when transferring diluted bleaching solution to the flask. c) A student began a titration with an air bubble in the buret tip. The bubble remained in the buret tip during the first titration, but it came out of the tip with the titrant released during the second titration. d) A student added diluted bleaching solution and HCl solution to aqueous KI solution in Erlenmeyer flasks 1 and 2 before beginning the titration in Erlenmeyer flask 1. What is a and b?