What is the difference between oil/water (O/W) type and water/oil (W/O) type emulsions? Give an example of each type.

Q: What would the specific gravity of the solution likely be if 100 mg of NaCl is placed in 1 L of pure…

A: The specif gravity is defined as the ratio of the density of the object to the density of the…

Q: In a warm environment, which restorative wax is recommended for surface restoration? a. opaque b.…

A: In a warm environment, which restorative wax is recommended for surface restoration?

Q: 5. Discuss how melting points of the impure sample and recrystallized sample could have been used to…

A: Melting point is the temperature at which there is a change from the solid to the liquid state i.e.…

Q: What is the difference between the reaction of soap-water and synthetic detergent-water mixture to…

A: The composition of soaps is sodium stearate and composition of detergents is generally sodium…

Q: explain the mechanism of cleansing action of soap.

A: Soap consists of hydrocarbon tail and head in which tail is hydrophobic (water repelling) and head…

Q: If you are performing a solvent extraction using 1M NaHCO3 and Dichloromethane (Density = 1.325…

A: Solvent extraction is a process of separating the dissolved compound from one solvent by using…

Q: True/False: While emulsions and microemulsions consist of the same 3 ingredients; aqueous phase, oil…

A: True.

Q: To prepare a 13x dilution of a bacterial culture in a final volume of 38ml, how much of the original…

A:

Q: Which of the following is the best option for transferring 20 mL of a solution? A Use a 5ml…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 9. Boiling stones are added to the liquid to: a. accelerate purifying. b. catching impurities. c.…

A: Given Boiling stones are added to the liquid

Q: Saturating the aqueous phase by adding a salt such as Na2CO3 is called: Select one: O a. Emulsion O…

A: Given: Saturating the aqueous phase by Na2CO3 To find: Role of sodium carbonate in above process…

Q: 17. What is the Ceiling and fluidity temperature ? 18. This polystyrene has a number average…

A: "Since you have asked multiple question, we will solve the first question for you preferably. If you…

Q: How would you make 500.0 mL of a version of Coomassie Blue stain for gels? Its composition is the…

A: We need to prepare 500 mL of a version of Coomassie Blue stain for gels, The (w/v%) for Coomassie…

Q: 8. Suppose in Step 4 of the Graham's law experiment one of the partners moistened the cotton on the…

A: Graham’s law states that rate of diffusion or effusion of a gas and its molar mass are inversely…

Q: e) Which of the following formulations can be used to make a liniment a) 0) and (i) ) and () O…

A: e) The formulation that can be used to make liniment are Suspension Solution Emulsion

Q: 4. For over-the-counter preparations, inactive ingredients are called fillers. Are these the…

A: We have find out the answer.

Q: What was the drying agent used after the organic layer was separated? Group of answer choices MgSO4…

A: To remove traces of water from an organic solution, drying agents are required. It's used in a…

Q: Which solvent system was used for the recrystallization of acetanilide? O acetone-water 1:2…

A: 1. We must have an basic idea about recrystalization.  2. Recrystalization needs a solvent.  3.…

Q: If we are extracting 7 mg of caffeine using 8 ml dichloromethane . Does it make a difference using…

A: The question is based on the concept of solvent extraction. it is an experimental technique of…

Q: Draw 4 solvent molecules interacting with either the plate or the analytes and clearly show the…

A:

Q: The following figure shows the ingredients of Brand X ice cream. Brand X Ice Cream Ingredients: Milk…

A: To answer the questions regarding Brand X Ice cream:

Q: Please answer the following questions : 1) How many milliliters of a 1: 400 (w/v) stock solution…

A: 1. Given that,  (w/v) proportion of concentrated solution = 1:400 (w/v) proportion of dilute…

Q: molecules are

A:

Q: How many milliliters of a 1:50 w/v boric acid solution can be prepared from 500 mL of a 12% w/v…

A: We have to predict the volume of Solution

Q: What weight of potassium permanganate is required to prepare 250ml of a w/v solution such that 10 mL…

A: Initial volume ×initial concentration = final volume × final concentration

Q: Write the Separation of heavy metals using solvent extraction technique.

A: Solvent extraction is an analytical method in which metals are separated based on their solubility…

Q: SOLVENT SYSTEM DISTANCE SPOTS TRAVELLED, cm 6.4 1.4 1.9 solvent ITSAY 4.1 5.3 6.5 0.7 1.7 2.5 3.0…

A:

Q: The best liquid mixtures for separation by simple distillation need to have boiling points that…

A:

Q: How much water is present in 200 mL of 70% (v/v) isopropyl alcohol?     60 mL 140 mL 30 mL 70 mL

A: First option is  correct✅ that is 60 ml

Q: What physical property determines which solvent sinks to the bottom when performing a liquid-liquid…

A: A separating funnel is used for carrying out liquid liquid extractions. When two liquids are shaken…

Q: Prepare a 5 mM stock solution of Resveratrol (FW = 324.45). You have a 5 mg bottle and you want to…

A: Molarity = (mass/ molar mass) x (1/volume in L)

Q: Is the sebacoyl chloride solution more or less dense than the hexamethylenediamine solution? More…

A: Sebacoyl chloride solution remains at the top of hexamethylenediamine solution.

Q: 4. What is the significance of the emulsification? 5. What is the difference between detergent and…

A:

Q: You have 100 mL of solvent available to do an extraction. Which will give a better separation? O A.…

A:

Q: 1. What are the two reactants used to synthesize the Aspirin? 2.  Why is water added to the…

A: Aspirin is synthesized through the esterification of salicylic acid by the acetic anhydride.The…

Q: 4. Enumerate the differences between a serological and a volumetric pipette. 5. Enumerate the uses,…

A: Pipettes are one of the most important instruments in the analytical measurements that help us in…

Q: What roles do solvent, density and polarity play in liquid/liquid extraction

A: i. Solvent =  In liquid - liquid extraction, the solvent which is needed to be extracted should not…

Q: What is the difference between gel filtration and gel permeation?

A: Gel Filtration Chromatography is a technique which use to sperate out the molecules by there the…

Q: 1 Which of the following procedures would give the result in test tube #2? O Mixing rennin with milk…

A: Test tube 1 shows intact milk. Test tube 2 shows milk all coagulated and denatured.

Q: You have 100 mL of solvent available to do an extraction. Which will give a better separation? a. 1…

A: The solvent extraction is more effective when the extraction is repeated with small amounts of…

Q: 11. What is the concentration of losartan in this suspension, in mg/mL? 12. An infant is prescribed…

A:

Q: 1. Which property of compounds is responsible for the separation in a TLC? Explain with an example.…

A: Please find your solution below : 1. Thin layer chromatography is a technique used to separate the…

Q: permanent emulsions

A: Before knowing about permanent emulsion you should know about Emulsion and emulsifier Emulsion is a…

Q: Show the differance between Soaps and Micelles and Detergents:

A: Soaps are biodegdrable and form white precipitate with hard water that is called as scum whereas…

Q: How many ml of media do you add to 5ml of bacterial culture if you want to dilute it a) 3x, b) 4x,…

A: We have to tell the volume of media in mL needed to add 5 mL of bacterial culture, to dilute it a)…

Q: Distance Traveled Rf value Active Ingredient Analgesic Drug Distance Traveled by Spot (mm) by…

A:

Q: What happens when you mix 1/2 tsp of bleach with 1/4 tsp of vinegar in a plastic ziploc bag with a…

A: Given: Mix ½ tsp bleach with 1/4 tsp vinegar and a penny inside plastic ziploc bag.