IDENTIFICATION OF THE COMPONENTS OF THE MIXTURES. A. Sodium Chloride - naphthalene -'Food Color Mixture 1. Sublimation 2. Adsorption with activated carbon 3. Dissolution with water then evaporation B. Sodium chloride - Sulfur - Sand Mixture 1. Dissolution with water then evaporation 2. Dissolution with toluene then decantation 3. Dissolution with toluene the evaporation
Q: With the knowledge on analytical separation and analyses, outline a suitable analytical separation…
A: Water can be polluted by different natural phenomenon and also man-made activities.This must be…
Q: The liquid-liquid extraction is the classical technique in chemistry to isolate a target component…
A: Liquid-liquid extraction is also known as solvent extraction in which compounds are separated based…
Q: The bombarded fragments leads to the formation of molecular ion which is translated into (_)?…
A: Mass spectroscopy is used to determine structure of Unknown compound.
Q: Acetophenone is soluble in diethyl ether, isopropanol, and nhexane. Identify and justify the most…
A: The selection of the solvent for the UV-Vis characterization based on their UV cutoffs. The UV…
Q: Use the items to construct a flow chart for the procedure used to create a saturated borax solution…
A: The blanks in the given procedure is filled as follows,
Q: 3. CRYSTALLIZATION Mix in a beaker 2g of benzoic acid and 10ml of dist. Water. Boil gently over a…
A: The crystallization and sublimation procedures for benzoic acid are given in experiments 3 and 4.
Q: The precursors compound powders in chemical precipitation can be obtained by drying with…
A: The precursor compound powders in chemical precipitation can be obtained by drying with low…
Q: What is the purpose of a brine wash (saturated sodium chloride solution) in a liquid/liquid…
A: We have to predict the purpose of brine washing.
Q: An acid solution containing 2 per cent by mass of NaNO3, and an unknown concentration of HNO3 is…
A:
Q: 1-There are many opportunities during a recrystallization to lose crystals. How could you improve…
A: Since you have posted multiple questions, we are solving only first question for you. If you want…
Q: why is it necessary to test the ph? PROCEDURE To a six inch test tube was added thiamine…
A: Please find your solution below : Benzoin condensation reaction is an example of addition reaction…
Q: For a two-solvent recrystallization, you should have one solvent (solvent # 1) in which your desired…
A: In the process of crystallization first the solid compound is dissolved (In solvent 1) at boiling…
Q: Vhich of the followings is the important feature for choosing a good solvent for any…
A: Recrystallization is the method of purification of solute where the compound of interest is first…
Q: What are the scientifically proven bioactivity of VCO that is beneficial to human health?
A: As per the guideline, Since you have asked multiple questions, we will solve the first question for…
Q: How was the precipitate obtained after filtration? (A By scraping from the filter paper and…
A: Filtration- the process in which solid particles in a liquid are removed by the use of a filter…
Q: A 1.000-gram sample of NaOH (39.997 g/mol) which has been exposed to the air for some time (NaOH…
A: In the quantitative analysis, the unknown amount of the substances in the sample is determined by…
Q: A large volume of liquid is found to have some insoluble solid present in the bottom of the…
A: Various techniques has been used for the purification of the substances.
Q: How was the precipitate obtained after filtration? By scraping from the filter paper and…
A: Filtration is used to separate an insoluble solid from a pure liquid or a solution
Q: Both the physical properties of the API and the excipients are essential to ensure that the…
A: According to Q&A guidelines of Bartleby, we are supposed to answer only one question out of…
Q: How was the precipitate obtained after filtration? a. By drying the precipitate on the filter paper…
A: The precipitate is obtained by drying the precipitate on the filter paper using a desiccator.
Q: Match the mixture separation techniques with the description that applies to them most accurately…
A: Chromatography can be defined as an analytical technique used for the separation of mixture of…
Q: Naphthalene is separated in the mixture (methylene blue, sodium chloride and and is converted back…
A:
Q: A. Water and chloroform has a partition coefficient of 5.00. A 50.00mL sample of a 8M aqueous…
A: The partition coefficient for water and chloroform is given to 5.00. We are required to calculate…
Q: Why are two solvent in extraction immiscible?
A: Solvent - - > The solvent are those substance in which the solute is dissolved to form solution.…
Q: A student trying to determine if a white solid is a true hydrate heats the sample and finds that…
A: White solid is heated and it resulted in evolution of H2O. The anhydrous residue obtained waa…
Q: Prepare a written copy of the complete separation scheme for a solution that contains Ag+, Fe3+,…
A: At first Hcl is added,and Agcl precipitate formed and Ag+Separated. Then the cation solution treated…
Q: Studies have revealed extremely high deposites of heavy metals and particulate matters in rivers,,
A: Extremely high deposits of heavy metals and other particulates makes the drinking water unfit. The…
Q: Accurately prepare a 50cm stock solution of (approx.) 0.003M potassium permanganate solutic Very…
A: Given that: the volume of potassium permanganate solution = 50 cm3 the volume of potassium…
Q: The possible reason for the ignition of gravimetric precipitate is I. for its mass to be lower II.…
A:
Q: What was the function of the anhydrous calcium chloride? Illustrate this function by completing this…
A: Drying agent is also called a desiccant, which removes water or moisture from the atmosphere.
Q: A chemist received different mixtures for analysis with the statement that they contained NaOH,…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: Let's assume that 5.6 g of crude product was isolated, and 4.19 g of pure product was collected…
A: Melting point of crystal depends on arrangement of lattice
Q: Which of the following is INCORRECT? The general term used to describe the partitioning process is…
A: The method in which metal complexes or compounds are separate on the basis of their relative…
Q: 6. The following are disadvantages of using filter paper in gravimetry, which is not included? а.…
A: 6) c is the correct answer. IN the Gravimetry we uses the ashless filter paper to achieve the…
Q: A mixture contain benzoic acid, salt, powdered silica (white sand) and contaminated with coloring.…
A: Benzoic acid is soluble in organic solvents like ethyl acetate. When the mixture is treated with…
Q: Synthesize the following compound
A: Methoxyanilne reacts with sodium nitrite and hydrogen chloride at low temperature to give a…
Q: Because of the risk of lead poisoning, the exposure of children to lead-based paint is a significant…
A: Answer is explained below.
Q: A student trying to determine if a white solid is a true hydrate heats the sample and finds that…
A: The explanation is about true hydrate or not given below.
Q: When working with starch indicator is not one of the things to be considered? A. The indicator…
A: Starch is used as an indicator in redox titrations. It is used for the detection of the presence of…
Q: Discuss the a) direct method of weighing b) indirect weighing using the analytical balance.
A: Since you have asked multiple question we will solve the first question for you. If you want any…
Q: Using benzoic acid's solubility data in water (found in the pre-lab), calculate the amount of HOT…
A:
Q: Crystallization of Benzoic Acid from Water and a Solvent Pair and Melting Point determination of…
A: Recrystallization is a technique used to purify solid compounds. This is done by dissolving the…
Q: Fill in the blanks: a) The component of the mixture that becomes a water soluble salt by treating…
A: Solubility is the property of dissolution of a solute in a solvent to form a solution.
Q: The solubility of PbF2 at 25°C is 0.64 dm³. Calculate Ksp of PbF2. (Moza mass of PbF₂ =245.2gmol¹)…
A: Given: Solubility of PbF2 = 0.64 gdm-3 Molar mass of PbF2 = 245.2 gmol-1
Q: Prepare a written copy of the complete separation scheme for a solution that contains Ag+, Fe3+,…
A:
Q: experiment is about spot tests for alcohols where sodium nitrite is added to concentrated sulfuric…
A: The above experiment is known as Liebermann's test. Acoording to this test 1) When phenol react…
Q: The weight percent %W/W of a saturated solution of potassium chloride in 20CO was: (NOTE: the…
A: Given, mass of the solution = 298g Mass of KCl or mass of solute = 74.5531 g Formula for % w/w is…
Q: If 30.0 mL of water that is 0.0500 M in Q is to be extracted with four 10.0-mL portions of an…
A: If 1.00 ×10-24 then fraction of solute to the organic layer, [A]i/[A]o, is calculated as shown…
Q: in ethyl acetate (organic) treat with aqueous HCI Aqueous layer Organic layer treat with treat with…
A:
Step by step
Solved in 2 steps
- ………… is usually used only to separate liquids whose boiling points differ greatly or to separate liquids from involatile solids or oils. which option is correct?a. distillation b. simple distillation c. fractional distillationd. steam distillation e. vacuum distillationAn unhnown brown liquid is unitorm throughout and con be futher Seperated by distillation The unhnown is... a.) element 6.) solution C.) a Lomponnd d.) heteropenous mixture not yet? ngest IMF #3.D. Preparation of 3% (vol/vol) Alcohol Solution1. Compute for the volume of denatured ethanol needed to prepare 25 mL of 3% (vol/vol) solution. Note that the concentration of the denatured alcohol stock solution is 98%.2. Explain in detail how the solution will be prepared in the laboratory.
- 2. An impure sample of compound D is contaminated with a number of impurities. The sample is to be purified by recrystallization. The solubility properties of three potential solvents are summarized below. Choose the best solvent and explain your answer. Include comments on each of the three solvents. Solubility of D at the boiling point Solubility of D at - 0°C of the solvent Solvent X 0.08g/mL 0.06 g/mL Solvent Y 0.67 g/mL 0.59 g/mL Solvent Z 0.63 g/mL 0.12 g/mLThe separation and purification processes given below and the method used against them are given. Which or which of these pairings are correct? Brewing the tea - Extraction Purification of water from impurities-Chromatography Separating olive pomace from oil while olive oil is being produced - Decantation Obtaining oil fractions - Ordinary distillation Obtaining essential oils and using them in perfume making - Water-steam distillation A. I, IV, V B. I, II, III, IV, V C. I, II, V D. I, II, III, V E. I, II, III, IV- Suppose your sample is mixed with other stuff that is not soluble in your recrystallization solvent. Whenfiltering, should you rinse with hot solvent or cold? Why? - Suppose you've isolated crystals of your sample and are now filtering them. Should you rinse with hotsolvent or cold? Why?
- Chemistry Which lab technique(s) can be performed on solid, somewhat soluble samples? Melting Range Determination or Recrystallization. Melting Range Determination. Not Recrystallization. Neither Recrystallization nor Melting Range Determination. Recrystallization. Not Melting Range Determination.A. Critical point: 374 C, 218 atm. B. Liquid is more dense variation. C. Triple point: - 56.4 C, 5.11 atm. D. Freezing point depression. 7. Describe the INCORRECT colligative properties observed when non-volatile solute is added to the solvent. A. Catalytic converter. B. Boiling point elevation. C. Vapour pressure lowering. D. Freezing point depression. 8. Select the CORRECT definition of eutectic mixture. A. Liquid that has higher boiling point and remains as liquid after the distillation. B. A mixture of two or more phases at a composition that has the lowest meltin point. C. Free energy change for the formation of 1 mole of the substance from it elements in their standard states. D Mixture of two miscible liguids that has a constant boiling point and the vapou Os the liguid3) The most critical process in an oil refinery is fractional distillation. Describe: a) why it is necessary? b) how the different fractions are separated (what are the principles that underpin the separation? i.e. how does distillation separate components?, and how does it do it in fractional distillation towers?); c) the energy exchanges that the operation requires.
- 1. Suppose each pair below is mixed well. What comes out as the simplest example of liquid mixing?A. 12 M sulfuric acid solution and 12 M sodium hydroxide solutionB. water with 80% ethanolC. ethane with methaneD. acetic acid and waterExplain why one would recrystallize a solid from a solvent pair instead of a single solvent. Explain how it works in terms of solubilities. please give detail, will only rate if sufficent detail is given. thank you!1. You are given a substance that is equally soluble in water and hexane (two immiscible solvents). a) What is K,? b) If you start with 10 g of the substance dissolved in 100 ml of water and are given 100 ml of hexane to extract with, algebraically show that it is better to do two smaller extractions using 50 ml of hexane for each extraction than it is to do one extraction using 100 ml of hexane.