Why would industry prefer to purify solids by sublimation or zone refining rather than recrystallization? (Hint: is there anything wasteful about recrystallization)

Q: What would a glassware assembly like this be used for? Heating a reaction under reflux conditions…

A: Fractional distillation is a process by which components in a chemical mixture are separated into…

Q: Explain what would happen in a distillation if a student did not have cold water running through the…

A: Distillation is a purification process which is taking place by conversion of liquid into vapors by…

Q: mmune with the bear spirit on an astral plane and explain the procedure for obtaining single cry

A: Vapor diffusion crystallization : The vapor diffusion crystallization method is commonly used to…

Q: Theoretically, the inherent viscosity for solutions (not pure solvents) should always be  a.…

A: Inherent Viscosity ηi = ln ηr/c ln ηr is zero for puresolvent and increases with increasing…

Q: Which of the following is a method that can help reduce the possibility of solvent bumping and…

A: In the given question we have to select the correct multiple option in which of the following method…

Q: When a mixture of soluble liquids is heated all liquids are evaporated. The liquid with the…

A: Our surroundings are full of materials which are mixtures of two or more components, these…

Q: A student measured the melting point range of an unknown solid to be 72.4 to 78.6 degrees celsius.…

A:

Q: A student was trying to prepare acetaminophen in the laboratory. She found a melting point range of…

A: Answer -

Q: Nano chemistry questions! True or false? 1. Bulk materials have almost constant properties…

A: The solutions are given below -

Q: Why must the oven temperature be kept below 100°C when drying your chemical product?

A: In order to dry the given chemical compound, The oven temperature should be kept below 100oC.

Q: If you were to consider only intermolecular forces and ignore any effects of mass, where would…

A: Generally, a particular state (liquid or solid or gas) of a substance depends on teperature,…

Q: The presence of soluble impurities in a given substance A lowers the melting point of A because the…

A: The given statement is False as The presence of soluble impurities in a given substance A lowers the…

Q: 3. A student is trying to identify an unknown solid based on its melting point. She noted that the…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: TRUE OR FALSE __________ 6. Glassware is clean when no water droplets cling to the inner wall of the…

A: For every chemist should know about the chemical laboratory safety guidelines and should understand…

Q: How much solid should be placed in a melting-point capillary tube?

A: The amount of solid that should be placed in a melting point capillary tube is given below.

Q: 1. Half-fill a 50-ml beaker with water. Warm gently with a small flame but do not boil. What appears…

A: Evaporation is the phenomenon where the liquid turns into a vapor.

Q: Which of the following is NOT TRUE about simple distillation?   a. The greater the difference in…

A: Simple distillation is technique which is used to separate a liquid mixture which consists of…

Q: explain what advantage the technique of reflux has over conventional boiling

A: Refluxing is a technique that is used to boil a mixture over a long period of time. In this…

Q: The process of separating the solid from the liquid can also be accomplished by gravity filtration.…

A:

Q: Explain the process of detergency using micelle formation.

A: A colloidal solution is a heterogeneous system in which one substance is dispersed as very fine…

Q: If we have more than one substance with a large difference in melting point and we want to prepare a…

A: A film is a coating substance with different materials. Understanding the appropriate methods for…

Q: Discuss the working principle used in flexible displays. Explain the construction of this using the…

A: A flexible display is rollable display which is electronic display and used in most electronic…

Q: Write TRUE if the BOLD word/phrase makes the statement correct. Otherwise, write the correct…

A: We have to tell whether the bold words/phrases are true or not. If they are not true, then we have…

Q: A process in which liquid-liquid mixture  can be separated into liquid using their difference in…

A:

Q: Enlist the uses of alcohol in extemporaneous compounding

A: We are to list uses of alcohol in extemporaneous compounding.

Q: Properties of Liquids and IMF example andbrief discussion

A: Liquids can be defined as fluids which do not have fixed shape but volume. For example: Water, Oil,…

Q: Alcohol can dry out your skin. What does this tell you about the physical properties of alcohol?…

A:

Q: In which option is the order showing whether the questions given below are true or false? (  )…

A: Analyze all the given statements and their relative terms. The given terms can be related to the…

Q: Which answer best describes the redistribution of matter or energy when melting takes place? more…

A: The question can be answered by considering one of the important thermodynamic concept such as…

Q: A student was trying to prepare acetaminophen in the laboratory. She found a melting point range of…

A: The theoretical range for the same compound is 169-173oC. The range of melting point for…

Q: Q2) why is oil used as a bath instead of water? Q3) what is the effect of impurities on melting…

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

Q: Chromatography paper is fairly polar. How would you expect an ionic component to behave when the…

A: In a paper chromatography technique, as the solvent rises, the components adsorbed on the…

Q: (a) Neat diethylzinc, Et2Zn, is a liquid with a melting point of -28°C while EtZnBr, EtLi, and Et2Mg…

A: Diethyl zinc is a highly reactive liquid and is flammable in air or water. It should be handled in…

Q: When recrystalizing an aspirin sample the hot solution cooled to room temperature and no crystals…

A: Recrystallisation process involves the solute (to be purified) dissolve in an appropriate solvent.…

Q: placed in separate containers labeled Sample A and Sample B. Both containers were left open until…

A: Solution: We know homogeneous solution is a mixture of two or more substances. As homogeneous…

Q: 1. What would it mean if the melting point had a wide range in temperature rather than a narrow…

A: Hello. Since your question has multiple sub-parts, we will solve the first three subparts for you.…

Q: Which of the following is/are TRUE about simple distillation technique? a. It is used to separate…

A: Distillation is a technique that is used to separate mixture of liquids depending upon the boiling…

Q: heating a mixture to 100 degrees is necessary to seperate a mixture only containing salt and sand…

A: Yes given statement is true  Without heating cannot be separate sand and salt

Q: 4. A young chemist has synthesized what he believed to be acetaminophen. He measured the melting…

A: Acetaminophen should have melting point exactly between the range of 169-170.5 oC as per literature…

Q: A student has a mixture of two possible compounds. The student performs recrystallization to…

A: The given mixture has two compounds with Melting point of compound 1 - 204 oC Melting point of…

Q: Enumerate and briefly discuss the quality control tests performed to determine the properties of the…

A: Weight Variation test (U.S.P.) Tablet weight is mainly affected by factors such as tooling of the…

Q: Impure acetanilide was dissolved in hot water. The solution was filtered hot and the beaker of…

A: Given, Impure acetanilide was dissolved in hot water. The solution was filtered hot and the beaker…

Q: It is possible to use the Dumas method even if the sample's boiling point and vaporization point is…

A: The statement given is: .

Q: LATION Why is it dangerous to heat a compound in a distilling assembly that is closed tightly at…

A: If we heat a  compound in a closed  container and there is no vent or opening to the atmosphere then…

Q: Explain the PVT behavior of pure substances with appropriate examples.

A: For the given pure substance, a typical pressure-temperature diagram at constant volume.

Q: 1. What would it mean if the melting point had a wide range in temperature rather than a narrow…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: In a distillation process, a sudden formation of vapor might happen when heat is concentrated in one…

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

Q: It is preferable to use the conical beaker for the crystallization process

A: Beakers (cylindrical) have a very wide surface area, which allows hot liquids to evaporate more…

Q: h) You complete the effective drying of the needlelike crystals and now you will take a melting…

A: The temperature at which solid substance is converted to liquid substance is known as melting point.

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.