TLC is a quick, inexpensive microscale technique that cannot be used to: verify a substance's identity/purity determine appropriate conditions for column chromatography/determine the type of solvent system required for large scale column chromatography or preparative TLC analyze the fractions obtained from fractional distillation determine the number of components in a mixture monitor the progress of a reaction

Q: What is the volume of added acid at the equivalence point? Express the volume in milliliters to two…

A: The graph for pH versus volume of the acid added is given below : We have to calculate the volume…

Q: Part IlI: Determination of Saturated Solutions

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Q: B) How the softening of tap water is carried out?

A: Hardness of water is due to the bicarbonate, chloride and sulphates of Mg2+ and Ca2+. This water is…

Q: You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare…

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Q: If  niferex liquid solution provides 10 mg of elemental iron in 1 teasepoonful, how many mL of…

A: We need to calculate mL of solution required to provide 55 mg of elemental iron.

Q: 2 ml 1 ml 1 ml 1 ml STOCK solution colored- dye bottle 1 mg/ml A B C D E Volume of water 4ml 4ml 4ml…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the amount of…

Q: Describe the cleansing action of soap and detergent

A: cleansing action of both soaps and detergents results from their ability to lower the surface…

Q: Arterial fluid is what is in the bottle, arterial solution is the mixture in the reservoir. True

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Q: Data Table 1 Enter the calculated molarity and measured conductivity values in the table. Data Table…

A: Note: Conductivity values comes from the readings of Conductometer. Molarity can be calculated as:…

Q: Table 1: Absorbance of X solution (575 nm)     Concentration (mg/ml)   Absorbance 0.025…

A: The relation between absorbance and concentration can be given as follows; A = e C l Where, A =…

Q: Give the standard deviation of these three molaritys.    0.0366 0.0373 0.0370

A: Standard deviation:  Standard deviation tell about the variability(error) in data set. If standard…

Q: Is gel hand sanitizer classified as a solution?

A: In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a…

Q: What does the process of recrystallization accomplish? 1) Place toxic chemicals into pure materials…

A: Recrystallization is the process of purification of organic compounds. Hence, the process of…

Q: How much diluting fluid would be required to make 100 mL of a 1/100 dilution from an undiluted stock…

A: First the given data Final volume = 100 mL Dilution = 1/100 Find out the diluting fluid volume

Q: Write a conclusion based on the result above

A: A question based on Beer-Lambert law, which is to be accomplished.

Q: Select all of the statements that are true about the melting point of an impure compound. The mp…

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Q: According to the USP, the percentage purity of ascorbic acid in tablets must be 90.0% to 110.0%. The…

A: The answer is shown below.

Q: -S NaCN H₂0

A: In an SN2 (Substitution Nucleophilic Bimolecular) reaction, sodium cyanide (NaCN) can act as both a…

Q: Calculate the water content of antibiotic powder weighing 350 mg. The water equivalent factor is 4.6…

A: The % of water content in the drug is determined by the formula is shown below. The antibiotic drug…

Q: How to separate water and alcohol using salt? What ks polydensity bottle?

A: Sodium chloride (salt ) dissolved well in water, but poorly in alcohol. When salt is added to the…

Q: 1. What are the differences between preparing soap and detergent? 2. What will be the best thing to…

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Q: • Stock solution: 1000 mg/L Target sample concentrations: 50-400 mg/L • Create a 5-point standard…

A: Given that, The concentration of the stock solution is C1 = 1000 mg/L. The volume of the final…

Q: How many kilograms (kg) of 20-20-20 soluble fertilizers should you add to a 50 gallon concentrated…

A: 20-20-20 fertilizer refers to a NPK fertilizer having N:P:K = 20:20:20.

Q: Perform calculations to determine the amount of 5.00x10-5 M stock solution needed to prepare 20.00…

A: The dilution of solutions is an important process in chemistry that involves reducing the…

Q: A…

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Q: Describe the steps involved in recrystallization.

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: Suppose you measure a volume of 9.0 mL and a mass of 7.04 g for your first distillate. What is the…

A: Density -  Density is basically the degree of compactnesss of a system.

Q: A student was given a stock ascorbic acid solution of 2.323 mg/L. Following the directions in the…

A: Concentration of stock ascorbic acid solution = 2.323 mg/L

Q: Concentration of TZ stock solution (μMμM) 42.06

A: Given Data:Concentration of TZ stock solution (μM)42.06To determine:

Q: How much of copper sulphate pentahydrate we need to prepare 0,5L 0,1 M solution?

A: Given, Molarity of the solution = 0.1 M = 0.1 mol/L Volume of the solution = 0.5 L mass (in grams)…

Q: 1) Calculate the volume of the concentrated sulfuric acid required. 2) What precautions are required…

A: Above equation is necessary for calculate the volume of concentrat H2SO4

Q: “Oh man, our supply person didn’t put in our order for 70% alcohol. All we have are liters of 100%…

A: Given that, alcohol with concentration of 100% and 90%. we have to make different concentration of…

Q: Most of us have had a glass of water from a Brita® pitcher. What is inside of a Brita® filter…

A: The Brita filter cartridge is composed of copolymer of styrene methyl methacrylate.

Q: Describe the cleaning action of soap

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Q: Ter solution differ from an unbuffered solution

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Q: How does sugar preserve food materials? Is it a better preservative than salt? Why or why not?

A: Please find your solution below : In food materials, sugar helps to preserve the colour, texture and…

Q: Solid particles in water may exist in 3 ways - dissolved, dispersed, or suspended. (True/False)…

A: Answer-1 True   Explanation: Solid particles in a solution can exist in 3 different forms. When they…

Q: 500 ml of 2000 ppm of sodium chloride is equal to 1g False True

A: ppm means parts per million. ppm is also expressed in (mg/L). In the case of solute (solid)…