Q: Write the chemical equation for the reaction between phenol and ferric chloride solution.
A: Phenol reacts with ferric chloride in order to yield ferric phenoxide complex which has a violet…
Q: Describe how the purity of the prepared aspirin was evaluated from the results of the ferric…
A: To describe (a) how the purity of the prepared aspirin was evaluated from the results of the ferric…
Q: what would be the implications if the volume reduction is skipped in the recrystallization
A: Recrystallization is a purification technique often employed in the labs. it is based on the…
Q: Benzoic acid and water were added to the test tube labeled "b.a." After stirring the mixture, sodium…
A:
Q: An unknown sample is found to be soluble in water. The aqueous solution was found to change blue…
A: Given , The unknown sample is soluble in water. The aqueous solution changes blue litmus paper 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: For which titration is phenolphthalein the best choice? Explain your reasoning and support with…
A: Titration is a technique in which a solution of known concentration is treated with a solution of…
Q: Write the letter that corresponds with the compound described by the following statements. It will…
A:
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: Select all the solvents/solutions in which you would expect this compound to dissolve: Dilute…
A: The given compound is Biphenyl. It's a non-polar compound.
Q: 4. What specific effect, if any, would each of the errors below have on the calculated concentration…
A: Acetic acid (ethanoic acid) is a colorless liquid organic chemical compound CH3COOH (also written as…
Q: Which property is the basis of the purification technique recrystallization? Select one: Color…
A: To solve this problem we have to know about purification technique recrystallization .
Q: the eugenol and water distillate you collect is apt to be cloudy, particularly the first part of…
A:
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: please explain why solubility of acetylinic compound in many bases?
A: Hydrocarbons that contain carbon-carbon triple are known as alkynes. The molecular formula of the…
Q: What is the expected visual observation when ether and hot, acidic potassium permanganate were mixed…
A: acidic potassium permangnate is an strong oxidizing agent.
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: Julius Novachrono added a standard solution to an analyte until the reaction between the analyte and…
A: In chemistry there are different processes to check quality and quantity of a chemical compound. The…
Q: In initial steps of the sol-gel process, a reactive metal is treated with an alcohol to form a metal…
A:
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. Acetyl Chloride test 2. Iodoform test 3. lucas test
A:
Q: What could be the purpose of adding soap to the milk and what kind of reaction does soap and…
A: Soap has the tendency to behave as a surfactant.
Q: For each of the following pairs, identify a reagent that will dissolve one substance but not the…
A: As2S3 is dissolved in (NH4)2S whereas HgS does not dissolved in (NH4)2S and produce black…
Q: Give the group number where the cation belongs 1. Mercurous(Hg2-) ion gives a white precipitate with…
A:
Q: how do you account for the formation of precipitates in test for purines ?
A: Purines is heterocyclic aromatic compound that consist of two rings with nitrogen atoms.
Q: What will be the solubility of the sugar if dissolved in normal water, 60 degrees celsius water, and…
A: The concept used here is Solubility of solid in liquid increases with increase in temperature.
Q: How can we use a known reaction to preform a presumption test
A: Presumption Test :- Qualitative analysis that allows to identify, or confirm, the presence of a…
Q: What would be the effect of a more dilute solution of NaOH on the titration?
A: In the titration process , the titrant is added slowly to the unknown solution . When we dilute the…
Q: In the Separating Acids and Neutral Compounds by Solvent Extraction experiment, why was sodium…
A: In the Solvent extraction method, two immiscible solvents are used to separate a mixture of…
Q: why do you have to stir when adding sodium nitrite to a solution when forming a diazonium salt?
A:
Q: Draw/illustrate the chemical reaction involved in Benedict’s test and explain the purpose of this…
A:
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: 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: (b) AgNO3 test : Red precipitate formed , which dissolved in dilute HNO3 BaCl2 test : Yellow…
A: In this question, we have to find out the correct answer of given problem by the help of the…
Q: Write the reaction involved when ascorbic acid is titrated with: Iodine Dichloro-indophenol solution
A:
Q: 1. Name three needed characteristics for an indicator reaction. 2. Name one advantage and one…
A: An indicator depends on its acid strength i.e. pH range where the color of the indicator changes…
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: To purify a compound, one must choose a solvent which will dissolve the compound of interest when…
A:
Q: Complete the table:…
A: Molisch’s test: It is the chemical test used to check for the presence of carbohydrates in a given…
Q: Why is concentrated hydrochloric acid used in the flame test and not any other concentrated acid?
A: Certain metals possess tendency to absorb radiations and get excited to greater energy states. Thus,…
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: In glucose estimation using Benedict's Reagent, justify the necessity of continuously heating the…
A:
Q: Select all the solvents/solutions in which you would expect this compound to dissolve: HO Dilute…
A: Answer- B and D
Q: Is the sodium salt of propanoic acid as effective a soap assodium stearate? Explain.
A: Soaps are defined as salt of fatty acids that are produced by hydrolysis of fatty acids. Soap…
Q: 4. What specific effect, if any, would each of the errors below have on the calculated concentration…
A: NOTE: “Since you have asked multiple question, we will solve the first question for you. If youwant…
Q: As seen on the side, KMN04 solution is purple violet. Purple violet color disappears when added on…
A: First consider the state of Mn in MnO4- In this species the oxidation number of Mn is +7 which is…
Q: As a stabilizer for solutions of ascorbic acid for injection use: A) sodium bicarbonate B)…
A: Sodium metabisulphite is used to stabilize the ascorbic acid for the stabilization. Sodium…
Q: Why does zinc hydroxide dissolved in excess sodium hydroxide?
A: Given Compound =Zinc HydroxideChemical formula = Zn(OH)2 Condition = Excess of sodium hydroxide
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: Select all the solvents/solutions in which you would expect this compound to dissolve: CI. ОН Dilute…
A: Polar compounds are soluble in polar solvents.
What will be the effect of trehalose on Fehling's solution
Step by step
Solved in 4 steps
- Explain how these terms relate to ternay phase diagram Raffinate Solute Carrier ExtractDescribe the temperature-composition diagram. What did you observe with the temperature of the vapor and distillate in relation to the composition of the distillate?Why a filter paper cannot be utilized for the removal of potassium permaganate precipitate?
- Why is there a need to immediately titrate the sample solution with the standard sodium thiosulfate solution after generating the iodine in the mixture?Why are ice and water added to the reaction mixture after the reaction was completed? A. To increase the volume of the solution.B. To deprotonate the intermediate to form the productC. To protonate the intermediate to form the productD. To dilute the solution before filtration to avoid that the filter paper to dissolveWhy can we use a water-ethanol mixture but not a water-hexane mixture as a recrystallization solvent
- assuming that charcoal and sugar are the main impurities in a sample of crude acetanilide explain how recrystallization from water would remove each.Why must solid remain in constant contact with a solution of sparingly soluble salt in order to ensure equilibrium?the eugenol and water distillate you collect is apt to be cloudy, particularly the first part of this distillate. Explain why.