. What made an ashless filter paper ashless? 2.What type of precipitate is BaSO4?

Q: How do we keep relative supersaturation low by controlling solubility?  a. solubility should be…

A: Supersaturation is the driving force for precipitation which is defined by the difference between…

Q: Part B: Complete the flow chart with the steps necessary for measuring the pH of the buffer…

A: Place the Beaker with the 1:1 buffer solution onto a magnetic stir plate. Add a small stir bar to…

Q: Which dissolves faster, a teaspoon of sugar or a sugar cube? why

A: Rate of dissolution is depend on various factors like agitation, surface area , temperature.…

Q: A 625 mg sample of sodium bicarbonate tablet required 7.30 mL of 0.9580N sulfuric acid solution to…

A: Titration is a technique of determining the unknown concentration of one solution from the known…

Q: A vinegar sample of 19 mL was diluted with distilled water to a 250-mL volume. 25 mL portion of this…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: A. The sodium hydroxide solution was not mixed thoroughly after diluting with deionized water. B. A…

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Q: STANDARDIZATION OF NAOH SOLUTION A 0.4047 g sample of primary standard grade potassium hydrogen…

A: The titration reaction between KHP and NaOH is an example of acid-base reaction with phenolphthalein…

Q: Ksp for CaCO3 is 8.7 x 10. What mass of CaCO3 can dissolve in 2.50 liters of solution?

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Q: What is the advantage of Fajans method over Volhard method for chloride ion titration, Please…

A: There are three methods for the analysis of chloride ion determination which can be used, Fajans…

Q: When performing a titration in the lab, which equipment is not used? 1. burette 2. pipette 3.…

A: Titration is the process of chemical analysis in which quantity of some constituent of sample is…

Q: In the 2,4-DNPH test, a yellow precipitate indicates a positive test result. Is this always the case…

A: Given: In the 2,4-DNPH test, a yellow precipitate indicates a positive test result.

Q: 2. What is the vapor pressure of CHCla at 50°C? 3. What is the boiling point of H2O when the…

A: Lower the intermolecular forces of any compound, higher is its vapour pressure and lower it's…

Q: help asap Ostwald ripening (digestion) improves the purity and crystallinity of the precipitate.…

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Q: A vinegar sample of 28 mL was diluted with distilled water to a 250-mL volume. 25 mL portion of this…

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Q: A titrant solution of KMnO was standardized with 0.2000 grams of Na2C2O4 and consumed 27.75 mL to…

A: Given: KMnO4 is standardised using 0.2000 g of Na2C2O4. And the volume of KMnO4 solution used =…

Q: Two mililiters of 0.025M potassium iodate solution was used to standardize the sodium thiosulfate…

A: Molarity is defined as the moles of solute upon the volume in litre

Q: 1. What type of precipitate is BaSO4? 2. Why is a filter paper preferred over a sintered glass…

A: 1) Barium sulphate is a white color precipitate , it is ionic in nature . when barium chloride is…

Q: and is 8) appropriate for separation of The procedure in the next picture is called, (a) Two…

A: Since you have posted multiple questions, we are entitled to answer one only.

Q: Can some one explain how benzoic acid is insoluble with water and also insoluble with 1m hcl? But is…

A: Benzoic acid consist of one benzene ring and one carboxylic group. Benzene ring makes benzoic acid…

Q: What should you do with the 5 mL portions of NaOH used to clean the buret? Discard into designed…

A: To clean the buret , 5 ml portion of NaOH is added . Then that NaOH solution is contaminated with…

Q: Convert the titrant into desire Totally convert analyte into de form Shou

A: We know that, Preoxidation is defined as it will oxidised in advance of other process. Prereduction…

Q: Two milliliters of 0.025molars potassium iodate solution was used to standardized the sodium…

A: Potassium iodate :-  Volume = 2 mL = 0.002 L  Molarity = 0.025 M  Sodium thiosulfate :-  Volume =…

Q: An unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an…

A: In the given problem first of all reaction of NiCO3 with 2 mol of HCI takes place. Resulting in the…

Q: How do you determine which salts have a higher vs lower solubility when given Ksp? This is one of my…

A: Determine which having higher solubility --

Q: Initial volume of buret (mL) Mass of KHP (g) Observations Final volume of buret (mL) Volume of NaOH…

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Q: Experiment 2: Determination of the solubility of potassium bitartrate in KNO3 solution What is the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 20.00 mL of a H2SO4 solution with an unknown concentration was titrated to a phenolphthalein…

A: · Volume of H2SO4 = 20.00 mL· Volume of NaOH = 48.39 mL· Molarity of NaOH = 0.1231 M

Q: For a polluted soil by crude oil. best method to wash it is by using a. EDTA O b. NAOH O c.…

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Q: How many miles of CaF2 will dissolve in 3.0 liters of 0.061 M NaF solution? (Ksp for CaF2 = 4.0 x…

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Q: . Presence of interfering contaminants in the sample is an example of this error. 2. A substance…

A: Answer- Errors in measurements-  There are different types of errors.

Q: To purify a compound, one must choose a solvent which will dissolve the compound of interest when…

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Q: 200 ml of a water sample required 20 ml 0.025M Hydrochloric acid using methyl phenolphthalein. What…

A: V1 = Volume of the acid  V2 = Volume of water sample  N = Normality of HCl

Q: A vinegar sample of 28 mL was diluted with distilled water to a 250-mL volume. 25 mL portion of this…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: 1. What type of precipitate is BaSO4? 2. Why is a filter paper preferred over a sintered glass…

A: When sulfate ion react with barium in an aqueous solution, the given reaction occurs : Ba2+(aq)  +…

Q: A standard solution is a solution of accurately known concentration. What is a standard solution for…

A: Titration is the qualitative method to determine the concentration of unknown solution by adding the…

Q: glassware

A: In this question we have to explain that why the glassware which contacts the KMnO4 solution should…

Q: A total of 120g of marsh clam tissue were found to contain 0.004g of lead (Pb). Calculate the Pb…

A: The mass of solute in mg present in a one-kilogram solution is known as ppm (parts per million)…

Q: Two milliliters of 0.025molars potassium iodate solution was used to standardized the sodium…

A: 2.0 mL of 0.025 M potassium iodate KIO3 solution was used to standardize 19.4 mL of the sodium…

Q: A 0.20 g sample of primary standard Na2C204 (134 g/mol) needed 37.22 mL of of KMN04 solution to…

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Q: Compute for the titratable acidity of vinegar sample if 6 ml of 1.0 N NaOH was used to titrate 25 ml…

A: The percentage of acid in a sample is calculated as grams of the predominant acid per 100 grams or…

Q: 4. Compute for the titratable acidity of vinegar sample if 6 ml of 1.0 N NaOH was used to titrate 25…

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Q: Mass of Sodium Acetate :4.0 g    Volume of Sodium Acetate Solution: 100.00mL   Acetic Acid…

A: Given, mass of sodium acetate = 4.0 g Volume of Sodium Acetate Solution =  100.00mL

Q: Solvent Isotonic Hypertonic Hypotonic What is Iodine used to detect? Describe the assay/test. What…

A: Solution- A homogeneous mixture of two or more substance is known as solution.

Q: A 300. mL saturated solution of copper iodate contains 0.380 grams of dissolved salt. Determine the…

A: Given  Volume = 300 mL               = 0.300 Liter            ( 1 mL = 10-3 Liter ) Mass of copper…

Q: serum sample of 3mL is analyzed for nitrogen by modified Kjeldahl. The sample is digested,…

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Q: Connection of like dissolves like in alcohol, water, and vinegar in removing juice stain

A: Solvents are liquids which are used for different purposes like extraction, dissolution etc.…

Q: Attached problem

A: Recrystallization is defined as the process in which grains of a crystal structure come in a new…

Q: A 567.9 mg sample containing Na2CO3, NaHCO3 , NaOH and inert material was dissolved and titrated…

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Q: 1. Solubility Test Table 1. Results for the solubility test. OBSERVATION* INFERENCE SAMPLE Ethyl…

A: Solubility refers to dissolution of a substance in another so as to form a homogenous solution. It…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.