Q: Which is the correct step that must be followed if you have a secondary analytical grade of AgNO3?…
A: Given secondary analytical grade of AgNO3 Choices of Step Given Heat 100 mL of solution of AgNO3…
Q: Which would affect the accuracy of a melting point determination? Using a thermometer that has not…
A: Melting point is the temperature at which solid converts into liquid.
Q: Table 6. Baeyer,s Test (cold, dilute, neutral KMNO4) Description reagent: The reagent has a purple…
A: Baeyer's reagent is alkaline KMnO4. It is a mild oxidizing agent and is used to detect carbon-carbon…
Q: Based on the readings and lecture on emulsions, and the procedures for this lab answer the following…
A: Given dispersed phase Air Oil Water Egg Dispersed phase =…
Q: particular extraction proceeds with a distribution coefficient of 6. The system consists of 3.5 g of…
A: Fraction extracted and fraction remains in aqueous layer formula is W1= W0 × (V1/KpV2+V1)^n W0=…
Q: I have a Column Chromatorgraphy lab using an alumina, ferrocene: acetylferrocene (50/50 mix) and…
A:
Q: 2-propanol and water are mixed in three different ratios in this experiment to test the effects of…
A: 1.) The ratio of given for propanol/H2O is 2:3 so we can assume the volume of propanol is 2x and…
Q: What is each cycle of a simple distillation called? Theoretical plate Distillate…
A: Simple distillation is process of separation.
Q: Note the color of the cupric sulfate pentahydrate before and after heating. Question: Observations…
A:
Q: Tou were tasked to check if the liquid sample you have is a substance or a mixture Which among these…
A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…
Q: Retention Time Of Cyclohexene?
A: Retention time is the time interval between compound introduced or chromatogram starting to maximum…
Q: An unknown compound is suspected to be acetanilide (mp 113.5-114). What would happen to the melting…
A: Given information: The unknown compound is estimated to be acetanilide. The melting point of the…
Q: Stock solution and dilution materials: 500mg ascorbic acid (powdered) and 2L distilled water Solve…
A: Mass of ascorbic acid (C6H8O6) = 500mg Vol. Of distilled water = 2L Mol. Mass of ascorbic acid =…
Q: 3. Rank these solvent systems from on that would cause a compound to elute from the column fastest…
A: Given : Mixture of solvents To find : Solvent that elute the Compound fastest and slowest .…
Q: The solvent level in the development chamber should be above the level of the spotted compounds on…
A: The solvent level in the development chamber should be above the level of the spotted compounds on…
Q: Direction:A. Create a complete workflow process of producing a Liquid Dosage Form through…
A: There are many types of liquid dosage form-syrup,emulsion, suspension.
Q: If you did not completely dry the Erlenmeyer flask before weighing the result, how would that affect…
A: Given : You did not completely dry the Erlenmeyer flask before weighing the result.
Q: A student was given an unknown compound dissolved in acetone. The student decided to identify the…
A: Thin-layer chromatography is the technique that is used to separate or purify the compound from a…
Q: How can a fractionating column be prepared from a standard distillation column? Select one: Pack…
A: The fractionating column is fitted above the distillation flask containing the mixture of liquids to…
Q: 6. Research and explain why BenadrylTM, lidocaine, and morphine are injected as Benadryl-HCI,…
A:
Q: Match each chromatography term with its definition. a hollow tube that is filled with particles…
A: The sequence of answers given below is from top to bottom in the question 1. Packed column 2. Linear…
Q: I start my day by running mixed standards using a well established method. My compounds all elute…
A: This can be explained as
Q: Why must be the primary standard be dried before use
A: A primary standard is a reference solution used to determine the unknown concentration of another…
Q: HBr excess or HBr excess
A:
Q: Each of the student statements below is wrong. Explain why they are not correct. (a) All my…
A: The dissolution of a known amount of a solute to a solvent produces a solution of know…
Q: Crystal seeding
A: In this question we have to explain if there is no recrystallization due to the unsaturation of the…
Q: Sample +/- Observations No color change, still colored violet solution Cyclohexane Naphthalene
A: Solution: We know the Baeyer's reagent is alkaline solution of KMnO4 which is in perple/ violet…
Q: The following conditions may not cause tailing EXCEPT a. Volatile solvent b.Uncovered chamber…
A: TLC is one of the basic technique to get a preliminary idea about the compound synthesized in the…
Q: Explain two separation techniques how may be feasible for Benzene vs Phenol. One can be an…
A: Benzene is volatile liquid of boiling point 80°C . Phenol is of high boiling point of range 181°c.…
Q: Peak Retention Time (minutes) Area 1.201 136501204 acetone 2.011 1253056 toluene ortho-product…
A:
Q: The uses of thin layer chromatography are: 1) To identify unknown compounds 2) Determine purity of…
A: The correct answer is given below.
Q: What is a spectrophotometer used for in a cobalt chloride solution analysis
A:
Q: What does it mean if the color of the solution in UV flashlight are the following Sample 1-…
A:
Q: Please answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM…
A:
Q: While performing a crystallization, you obtain a light tan solution after dissolving your crude…
A: It is observed that a light tan solution is obtained and because of this, it is better to filter it…
Q: Follow proper technique when using a pipet: False O Using the pipettor, you should turn the wheel on…
A:
Q: Propene is also produced by cracking reaction. Propene can be reacted with benzene in the presence…
A: Given : Propene can be reacted with benzene in the presence of oxygen to produce two useful…
Q: You have 100 mL of solvent available to do an extraction. Which will give a better separation? O A.…
A:
Q: It is important to pre-wet the filter paper before filtering your sample. Which statements about…
A: One important step in the procedure for filtration using filter paper is to pre-wet the filter paper…
Q: ATION
A: Now, Below are the methods mentioned evaluating the steps,
Q: Determination of the concentration of HCl: Pipette 10 mL of hydrochloric acid and transfer to a 100…
A: Acid-base titration refers to titration reaction in which either of titrant or titrate is a base and…
Q: Explain briefly a proper technique to use burette
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: Which of these can be rinsed down the sink? the left over liquid from a distillation of 1-butanol…
A: The process of separation of two compounds on the basis of differences in their boiling point is…
Q: B D. 1 1.16E-04 0.005 2.32E-04 0.074 3 3.47E-04 0.145 4 4.63E-04 0.219 5.79E-04 0.301 6. Salicylic…
A: The absorbance of student's solution is 0.250. The equation of straight line is,…
Q: Can you please help me complete the tables? please kindly also include some sample calculations.…
A:
Q: Will the melting point increase or decrease with the benzoic acid, 4-chloroanaline, and naphthalene…
A: During the extraction of benzoic acid, 4-chloroaniline and naphthalene, HCl is added at the first…
Q: Draw flow chart for the extraction of mixture containing a. Acid and Base
A: Given : mixture of an acid and base. To find : Draw a flow chart of acid base extraction. Solution…
Q: The method of extraction for Roman chamomile is: Choose one answer. a. cold-press extraction b.…
A:
Q: What process is required to purify the ethanol from the fermented broth? Extraction Distillation…
A:
Q: Melting point range Recrystallized Phenacetin 95-100 Recrystallized Phenacetin + Reference…
A: The temperature at which any substance undergoes phase transformation from a solid to liquid state…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Which of the following statements is true? A Liquids can be weighed using a weighing paper. B In weighing hygroscopic substances, containers should always be kept close when not in use. After drying a sample in the oven, you can place it immediately inside the analytical balance. D Place solid reagents / precipitates directly on top of the balance pan.12. In IR analysis, solid samples are prepared in KBr pallet O O Thin film O Nujol Mull Organic compound sample in the solventOutline three differences in the experimental set up between fractional distillation and steam distillation.1-2-3-
- What parameters should be considered when choosing between distillation methods? Are there any differences in equipment or technique?3. To determine ethanol content in beer using Gas Chromatography (GC) - Flame Ionization Detection (FID), which of the following is the suitable internal standard? (A) Acetone (B) n-propanol (C) Propane (D) WaterFrom the practical standpoint, is it better to use a "good" solvent or a "poor" solvent when measuring polymer molecular weight? Explain.
- Answer the questions below. a) 500 ml. Acetic acid in 200 mL acetic acid-water mixture containing 30% acetic acid by volume with pure isopropyl ether will be separated by LIQUID-LIQUID extraction. Assuming the dispersion coefficient of acetic acid in isopropyl ether+water carjumine is 2, calculate the amount of acetic acid that passes into the organic phase and the extraction yield. b) What are the desired properties of the solvents used in liquid-liquid extraction processes?An enzymatic method for determining alcohol in the wine is evaluated by comparison with a gas-chromatography (GC) method. The same sample is analyzed several times by both methods with the following results (% ethanol). The values of alcohol for both enzymatic and GC methods are shown in Table 1. Using a suitable test, determine whether the enzymatic method gives the same value as the GC method at 95% confidence level.How to achieve low relative supersaturation degree? ( More than one answer) stir the solution while adding the precipitant mild heated solution pH controlled use higher concentration of precipitant
- Write TRUE if the underlined word/phrase makes the statement correct. Otherwise, write the correct WORD/PHRASE that will make the statement true. If there are two bold words/phrases in a number, write your answer for EACH of the bold words/phrases 1. 6-hydroxy-1-naphthoic acid is soluble in 5% NaOH and soluble in 5% NaHCO3. 2. The addition of excess charcoal would decrease the % recovery in the purification by recrystallization. 3. If the target compound is contaminated with impurity, the melting point will be higher than the theoretical value and the melting range is large.Give the function and purity for chemical reagent of Primary Standard Grade.Stoichiometry: Prolonged exposure of some functionalities to the eluent (methanol) in this experiment may lead to undesirable reactions. In one case, Acetylsalicylic acid (Aspirin) can react with methanol to form salicylic acid and methyl acetate. If 800 mg of Acetylsalicylic acid and 1 mL of Methanol undergoes such a side reaction (known as "Methanolysis") to completion: (a) write a balanced equation (draw all molecules instead of writing chemical formulas), (b) what is the limiting reagent? (c) predict the grams of salicylic acid and methyl acetate to be produced in this process. Show calculations. Hint: you can determine the grams of 1 mL of Methanol through its density.