What could be the purpose of adding soap to the milk and what kind of reaction does soap and phenolphthalein indicator undergo?

Q: Synthesis of benzoic acid 1. What qualitative test is performed to monitor precipitate formation of…

A: Benzoic acid being an carboxylic  acid which is aromatic in nature and hence used in preservative in…

Q: Would a positive result completely indicate the presence of caffeine in case the sample within the…

A: A positive result does not fully indicate that the caffeine is present or not unless the aqueous…

Q: The labels came off four cleaning solution containers found under a k ink. Each of the cleaning…

A:

Q: Calculate the percentage of Atropine in Belladonna powder using 10.7 g sample and adding 20 mL of…

A: Given data,Mass of sample=10.7gNormality of H2SO4=0.0225NVolume of H2SO4=20mLNormality of…

Q: How can you get the bottom of the meniscus to the volumetric line of the pipette?

A:

Q: Obermayer’s test?

A: The Obermayer's test is an accurate, simple and fast screening tool for the identification of…

Q: What is the purpose of the concentrated phosphoric acid used in the first step of Synthesis of…

A: H3PO3     →H3PO2-+  H+ H3PO3 acid donates H+ ion (proton) to carbonyl oxygen atom of acetic…

Q: Suppose that when titrating your sample, you failed to remove the air bubbles from the tip of your…

A: In this question, effect of presence of air bubbles in NaOH containing burette on the calculated…

Q: What are the functional groups for the Qualitative  Tests for carbonyls  and Unknown Carbonyl.

A: We are given an unknown carbonyl compound and its test results and IR spectrum.

Q: 10.0456g of butter are analyzed using our procedure and the titrant above. The burette volumes were…

A: NaCl in butter is estimated by titrating against 0.1 N AgNO3 solution The reaction: NaCl (aq) +…

Q: What is the value of 1.000 mL of an iodine solution (1.000 mL ≈ 0.03000 grams sodium thiosulfate) in…

A: Given 1.000 mL iosine, I2 is equivalent to 0.03000 g sodium thiosulfate, S2O32-(aq). Molar mass of…

Q: Please help me answer this. In a test tube, 5 mL of cooking oil and 5 mL of detergent solution were…

A: Since you posted multiple questions as per guidelines we will solve only the first question for you.…

Q: Describe one method of purification?

A: To find: The description about one method of purification

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: Carly the chemist consistently obtained a dark pink endpoint in all of her titrations in her KHP…

A: An indicator depends on its acid strength i.e. pH range where the color of the indicator changes…

Q: what is the use of vinegar and baking soda in the extraction of caffeine

A: When vinegar and baking soda is used in extraction of caffeine ,they react and following gas…

Q: What will be needed for resting a separatory funnel when it is charged (meaning in use)? O beaker…

A: Introduction: We have to tell what will be required for resting a separating funnel.

Q: 4. What effect, if any, would an insoluble, solid impurity have on the melting point of benzoic…

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

Q: In the conductivity test, _____________________ will result to a dimly lit light bulb. a. 1.0 M…

A: The A) , C) , D) will result in dimly lit the bulb.

Q: Is acetanilide soluble in hexane: (1) at room temperature? (2) after heating? (3) upon cooling?

A: 1. Acetanilide is insoluble in hexane at room temperature. 2. Acetanilide is soluble in hexane after…

Q: What challenges would you encounter with the titration if you had used apple cider vinegar or…

A: Answer is explained below.  When as an analyte in the titration, apple cider vinegar or balsamic…

Q: How do the reactions of phenol samples with FeCl3compare? Which structural component of the phenols…

A: Since we only answer one question at a time, we'll answer the first one. Please resubmit the…

Q: When preparing a soap it is always required that the pH be verified, if it comes out too high, how…

A:

Q: 1.00 mL of a 3.55x10^-4 M solution of oleic acid is diluted with 9.00 mL of petroleum ether, forming…

A: Given: Volume of oleic acid= 1.00 mL =0.001 L Molarity of oleic acid= 3.55x10^-4 M V1 of petroleum…

Q: Give the detailed step-by-step procedure for the preparation of 20 mL of 0.0005 M KOH

A: GivenMolarity of KOH solution = 0.0005 MVolume of Solution = 20 mLMolar mass of KOH =56.1 g/mole

Q: On the basis of color, is elther your aspirin or commercial aspirin contaminated with salicylic…

A: The functional groups are the key units associated with the molecule that furnishes the notable…

Q: Note the following indicators and their endpoints: Thymolphthalein (9.9) Resazurin (5.1) Phenol…

A: Indicators are the chemical species which show characteristic color in a solution for the…

Q: Draw/illustrate the chemical reaction involved in Seliwanoff’s test and explain the purpose of this…

A: Seliwanoff’s test is mainly uesd to distinguish between aldose and ketose. The detailed mechanism is…

Q: Explain the role of phenolphthalein in the standardization of NaOH with KHP

A: Phenolphthalein is an organic compound which is colorless in acidic solution and pink in basic…

Q: Murexide

A: Although caffeine present in natural organic matter is less soluble in polar solvents such as water…

Q: How do I calculate the measurements to make a 100 mg/L caffeine standard solution using 0.010 M HCl…

A: The number of moles of the solution always remains constant no matter how the volume varies. If…

Q: In excess of alkaloidal reagent, did the precipitate formed dissolve or not? What is the evidence

A: The alkaloids are a class of vegetable compounds which are chemically similar to ammonia.  Like…

Q: Write the reaction involved when ascorbic acid is titrated with: Iodine Dichloro-indophenol solution

A:

Q: In the workshop, a sol of Prussian blue was obtained by the peptization method. Which group -…

A: Introduction :  Peptization : Peptization may be defined as the process of converting a precipitate…

Q: E of acetylsalicylic acid in the tablets.

A:

Q: 1. Define melting point. 2. True or False. The meiting point of a pure compound is a characteristic…

A: 1. Any substance which has a definite mass and occupies a volume in space is known as matter. Matter…

Q: Why is nitric acid added when ammonium thiocyanate solution is standardized

A: The question is based on the concept of volhard  titration. we have to explain the need of nitric…

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: How many mL of resorcinol monoacetate should be used to prepare 1 pint of 15% (v/v) lotion?

A: Given,  The volume of resorcinol monoacetate should be used to prepare 1 pint of 15% (v/v) lotion…

Q: In which compound will ammonium phosphate dissolve? Select one: a. carbon tetrachloride b. oil c.…

A: Ammonium phosphate formula is  (NH4)3PO4 Ammonium phosphate is a salt form.  Ammonium and phosphoric…

Q: Why is it important to keep the NaOH solution stoppered at all times when it is not in use?

A: We have to tell the reason that why NaOH solution is to be kept stoppered at all times when it is…

Q: Write the product of Acetyl Chloride formed in the medium containing acetic acid and pyridine.

A: Acetyl chloride gives a nucleophilic substitution reaction with acetic acid in the presence of…

Q: Physical Properties of Urine Properties Observations Color and Odor   pH using universal…

A: Color and odor : Color varies from pale yellow to deep amber. It is a result of urochrome and how…

Q: What is the relationship (in terms of equilibrium) between dental caries and the use of fluoridated…

A: Calcium carbonate is typical of salts containing basic anions (an example is carbonate, fluoride,…

Q: What was the purpose of performing titration analysis on the product synthesized in relation to the…

A:

Q: 1. What are possible qualitative chemical tests that can be used in identifying aspirin in the…

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

Q: Matching type. Identify the color of each sample using a specific indicator. 1. Vinegar - Methyl…

A: Each indicator gives a specific color in a specific pH range.  Hence the color of each solution…

Q: In a titration of methylamine CH3NH2 (pKb = 3.34) with HNO3, which of the following color indicator…

A: At equivalence point, the weak base, methylamine CH3NH2 is completely converted to the conjugate…

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.