solvent front origin

Q: The concentration of the stock glucosamine solution is 100 mM. A student took 0.5 ml of this stock…

A: “Since you have posted multiple questions, we will provide the solutiononly to the first question as…

Q: 1. Draw all resonance structures for the following molecule: F OH 2. From the resonance forms you…

A: Resonance structure:If the Lewis structure of a molecule or ion cannot explain by a single structure…

Q: ☐ อ コ コ HO O H2SO4 XS xs H₂O Click and drag to start drawing a structure.

A: Product of following reaction can be made by applying appropriate reaction mechanism.

Q: Which one answer does NOT represent a characteristic of a good recrystalli solvent? 1) Should not…

A: Recrystallization is the process of purification of an impure substance by the use of a suitable…

Q: Can you give me the data gathering method for Odor testing in water?

A: The quality of drinking water is judged by taste and water. If the quality of water is good then it…

Q: What is the purpose of formaldehyde in embalming fluid? a. it acts as a surfactant b. it acts as a…

A: The mentioned compound is one of the simplest organic entity possessing an aldehyde functionality.

Q: Carla is using a fertilizer that contains nitric acid. How is nitric acid classified? O strong acid…

A: Nitric Acid is considered as Strong acid

Q: Describe the suspended solids on the filter paper and the residue left in the beakers after…

A:

Q: 3. Which response includes all of the following substances that can exhibit hydrogen bonding, and no…

A: Among the above compound only NH3 (III) and HF (V) exhibit H-bonding. The option should be III and…

Q: 4. Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2–Tris, or THAM] is a weak base frequently used to…

A: Buffers are the mixtures that resists change in pH when small amount of acid or base is added to it.…

Q: What happens when your stearic acid solution forms a bead or small film that does not spread on the…

A: When a stearic acid solution forms a bead or small film that does not spread on…

Q: For manufacturing 1 litter of Acid free shampoo for bike or car washing, which textile dye i should…

A: When it comes to coloring agents or dyes for formulations, there are several factors to consider…

Q: How do you know if your analyzed vinegar sample conform with the FDA standards?

A: Vinegar is made from acetic acid and water and it is a sour liquid. The acidity in vinegar is due to…

Q: Pure aspirin has a melting point of 135-136 °C. Before the melting point was determined - if the…

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

Q: Cleanliness should always start at home and with one's self. This activity will help you practice…

A: Here, we will discuss about cosmetic products present at home and cosmetic product form.Let's make a…

Q: What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?

A: Given : A paragraph is given.  To find : Possible question in proper format from the paragraph.…

Q: QUESTION 3: What is the mass (in grams) of fluorine gas is needed to react completely with 17.8g of…

A:

Q: diffrentiate between oil in water emulsion and water in oil emulsion.

A: Dispersed phase and dispersion medium are liquids in the colloidal systems. Such liquid systems are…

Q: Give an example of one practical application of TLC.

A: TLC is thin layer chromatography , it is a technique used to separate non volatile mixture using…

Q: :Br: A) The cation rapidly switches between two positions of the electrophile. The bromine atom…

A: Given reactionIn organic chemistry, the addition of hydrogen bromide (HBr) to propene is a…

Q: MRI machines primarily work using ____. a. The nuclei of carbons in fatty acid chains b. The nuclei…

A: Magnetic resonance imaging (MRI) utilizes natural magnetic properties of the body for producing…

Q: In a chromatography experiment, samples can be separated based on their polarity. If you have a…

A: In a chromatography experiment, samples can be separated based on their polarity. If you have a…

Q: Would anyone be able to tell me how to set theses up to solve them.

A: Since depression in freezing point is given by .,   depression in freezing point = Kf X m X i…

Q: 5. Calculate the pH of a solution that is 0.200 M in NH3 and 0.300 M in NHẠCI. Calculate the pH…

A: Using Henderson-Hasselbalch equation: pH=pKa+logBaseAcidpOH=pKb+logAcidBase Given:- Concentration of…

Q: Answer and explain the 2 questions below. No copy-paste in google, please.  When is magnetic…

A:

Q: How does the analyzed vinegar sample conform with the FDA standards?

A: According to the Food and Drug Administration(FDA) standards, the minimum amount of acidity that a…

Q: Which PPE should the experimenter wear when performing the experiment in the lab? O Apron…

A: Usually an experimenter wear Apron in laboratory when performing the experiment in the laboratory…

Q: DIAPER DISSECTION LAB REACTIONS OBSERVATIONS Powder collected from the diaper and mixed with After a…

A: Your observations are correct.

Q: How do you determine how much solvent to add during recrystallization? What happens if you add too…

A: In order to create a saturated solution, it's crucial to use the least amount of boiling solvent…

Q: This week in lab we made a lotion, which of the following was thickening the aqueous phase?   A.…

A: Given:The lotion is made in a lab.A. Xanthan GumB. GlycerinC. Cetyl PalmitateD. Cetyl…

Q: Why are artificial flavors and/or colors not quite the real thing?

A: The term artificial colors can be defined as the food additives which are used to enhance or provide…

Q: A sample of fried potatoes weighing 200 g was extracted using a volatile organic solvent. The…

A: Amount of fried potatoes given = 200g Amount of cooking oil recovered = 15g Volatile organic solvent…

Q: Question 6 In TLC, the stationary phase is A) alumina B filter paper Ⓒ C) glass D cellulose

A: Chromatography is lab technique which is used to seperate the the chemical components from each…

Q: If you had to test the laundry detergent (Tide, Gain, or whatever you use at home) together with the…

A:

Q: Use any spectroscopic method to attain qualitative and quantitative information on adulterated palm…

A: The adulteration of palm oil with many fat soluble azo dyes that are difficult to separate from the…

Q: Did the slime pick up water soluble or water insoluble inks in? From these results, what can you…

A: Polarity of molecules is the separation of electric charge within the molecule and have an electric…

Q: H2 HO Pd/C 1. KMNO4, NaOH 2. H30* PBr3 Br HO,

A: The reaction schema given is,

Q: Regarding TLC plates: a) When spotting a TLC plate, are small spots or large spots better? Or does…

A: Ans Spots are not too large  or too small. If spot is large then overlaps with other Components . So…

Q: What is exfoliation? What are the characteristics of a good body scrub? List the basic ingredients…

A: Exfoliation helps us to protect our skin from damage and makes skin healthy. Here we have to find…

Q: Compute the root-mean-square speed of Ar molecules in a sample of argon gas at a temperature of…

A: Root mean square speed (vrms)The root mean square speed of a molecule can be determined by using the…

Q: . Explain the theory of emulsion.

A: Given emulsion   We need to explain the theory of emulsion.

Q: Arterial embalming may  a. arrest the cause of putrefaction b. increase the possibility of…

A: Answer is a option .

Q: Highest concentration of dye Lowest concentration of dye Answer Bank 3.0 mL dye and 3.0 mL water 2.0…

A: Concentration is defined as the amount of solute with respect to solution.  More is the amount of…

Q: Question: A pharmaceutical company wants to determine the purity of a new drug compound. The company…

A: The purity of a drug compound is critical for its efficacy and safety. A pharmaceutical company must…

Q: List five tests from your lab report and answer positive or negative for the following compound…

A: SUGARS: In chemistry, the sugar compounds are normally named by adding a suffix "-ose" to the…

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.