option y in the purification of crystals. g the solution after mixing. ng the crystals stallization at least once. ooling during crystallization. ng the pure crystals poling during crystallization.

Q: What are two characteristics of good recrystallization solvent for given compound

A: Recrystallization is the most important process to purify the non volatile solvent.

Q: What are the collectors used in froth floatation process? Name a substance that can be used as such.

A: Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.…

Q: A sample of galena is contaminated with zinc blend. Name one chemical which can be used to…

A: ANSWER IS DISCUSSED BELOW :

Q: Which of the following could lead to a lowering of the melting point observed for a product? Select…

A: Option B, C and D are  correct answer.

Q: Having too much sample can cause an inaccurate melting point .under these circumstances how will the…

A: Melting point is the temperature at which the substance in solid phase changes to liquid phase as…

Q: Describe how to weigh hygroscopic solids

A: Answer - Hygroscopicity - Hygroscopicity is the tendency of a solid substance to absorb moisture…

Q: Volumetric pipettes are designed to deliver a very precise amount of liquid, but only if you O a.…

A: Volumetric pipette is used to measure exact amount of a solution. Volumetric pipettes are always…

Q: Distillation is best done at what speed? a) Very fast to avoid loss of material b) The rate of…

A: Distillation is a technique in which the mixture of non-reacting liquids can be separated. In…

Q: ssing through a medium causes areas of:

A: This question is related to waves.

Q: os the enrgy cost to break IMFs for acetone to mix with water likely larger or smaller?

A: We found generally that acetone evaporates much more quickly than water, suggesting that the IMFs…

Q: How is recrystallization of an impure solid accomplished?

A: Recrystallization is a technique used for the purification of a solid from impurities.

Q: Question attached

A: Given: During the recrystallization process, the solution has come to the room temperature and no…

Q: Why is important to add a spin bar, spin vane or boiling stones to a mixture to be heated? These…

A: Bumping of solution result in loss of solution.

Q: e This diagram shows the apparatus used for distillation. What is the function of part X?

A: Distillation is one of the oldest and still most common methods for both the purification and the…

Q: What is a thin film?

A:

Q: Having too much sample can cause an inaccurate melting point under these Sir how will the observed…

A: If heating occurs too quickly, the material cannot reach thermal equilibrium. Pure substances melt…

Q: hich type of distillation is suitable for "less drastic conditions"?

A: Distillation  It is a separation technique that can be used to either increase the concentration of…

Q: What are the uses of recrystallization, decolorization, and sublimation?  Give  examples of each.

A: Recrystallization is process of removing insoluble solid impurities from an organic compound. The…

Q: "Cold filtration" is used during recrystallization to: Select one: a. Remove insoluble impurities O…

A: Cold filtration is the rapid filtration where solution is cooling then filtrate. When the solution…

Q: While filtering the crystals, the student used hot solvent to rinse the filter paper and the sample.…

A: The question is based on the variation of solubility any chemical entities with application of heat…

Q: Can you please solve all of the sub problems and show the step by step to the solution please and…

A:

Q: Calculated Mass of NaCl= Pink in color and 0.781 grams in 125ml beaker Calculated Mass of DI H2O=…

A: As we know that, Calculated value =  experimental value So, calculated mass = experimental mass

Q: The sucrose solution contained 4.624 g of sucrose in 50 mL of water Clobserved = + 12.50° Anull = +…

A: The question is based on concept of optical rotation . we have to calculate specific rotation of the…

Q: Filtration of samples A, B, and C show no residue left. After letting them dry in different beakers,…

A: Filtration is a technique to separate insoluble part from the soluble part in a solution.  No…

Q: Sublimation is preferred over recrystallization when you work with an amount of solid material to be…

A: There are many purification techniques. Sublimation and recrystallization are purification…

Q: Select all the statements below that are correct about Recrystallization O By dissolving both…

A: Recrystallization is defined as a process in which grains of a crystal structure come in a new…

Q: The purpose of adding sodium sulfate in the extraction is to decrease the solubility of caffeine in…

A: Solvent extraction or liquid-liquid extraction: The separation of compounds which are miscible in…

Q: Take the solution 10.12g, add 10mL of deionized water, and cool the solution to 0 degrees Celsius.…

A: CuSO4. 5H2O is the hydrated form of CuSO4. There are 5 water molecules in CuSO4. 5H2O.

Q: What is the role of collectors in Froth Floatation process?

A: Various processes are used for extraction of minerals. These minerals are very useful for…

Q: Describe how to create a 3.0 mL sample with concentration of 1.5 x 10-4 M from a starting stock…

A: Dilution Dilution process is the process to change (decrease) the concentration of solution in…

Q: When would you use fractional distillation vs. fractional crystallization?

A: fractional crystallisation :  This technique is used to  refine substances based on differences in…

Q: What is the level of the liquid in the gatuted oede Volume mL. 70 60

A: Everything that has and occupies space is called matter. Solids, liquids, gases are the three states…

Q: 12 Which of the folowing is not a reason tora chemtto sample? aTo check the purity of the solvent To…

A: As per our community guidelines we can only answer one question, out of the four questions you have…

Q: Recrystallized product is most efficiently collected by: * vacuum filtration O extraction O solvent…

A: Here, we have to choose a process from the given procedure, by which recrystallized product can be…

Q: List the precautions to be taken to keep a balance functioning correctly.

A: Given : Balance functioning correctly  To find : Precautions for proper functioning of balance…

Q: recrystallization

A:

Q: True solution is transparent. * O True O False

A: True solution is when solute is dissolved uniformly through out the solution. And is homogeneous…

Q: Which of the next is not a property for a recrystallizing solvent? Select one: O a. Volatile O b.…

A: The criteria used to choose an appropriate recrystallization solvent includes

Q: xplain distillation column? Which information required to design distillation column?

A: Distillation column is an important device used in the process of distillation . The process which…

Q: Vhat volume of 6.0 M KNO3 would be required to create 700.0 mL of a 0.75 M KNO3 solution

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

Q: There are many opportunities during a recrystallization to lose crystals. How could you improve your…

A: Interpretation-  How we can improve the percent recovery of recrystallization to lose crystals .…

Q: Define Extraction in chemistry  ?

A: Extraction : Extraction is a way to separate the desired substance when it is mixed with others. The…

Q: Determine the internal pressure in atmospheres (atm) needed for each of the 20 kernels to pop. Show…

A: Use ideal gas equation to solve for the internal pressure in each kernel,PV = nRT P = nRTV Given…

Q: Which of these statements about suspensions is NOT true? O Over time, their particles will settle if…

A: Suspension is the mixture which is heterogeneous that contains large solute particles. And these…

Q: Calculate the Concentration of aspecific Solution having the molay a bsorption Coe fficient…

A: A multiple choice question based on tools in analytical chemistry that is to be accomplished.

Q: Inducing crystallization by adding a crystal of the pure material * Your answer

A: A question based on crystallization process, which is to be accomplished.