1. Why is oil liquid at room temperature, while butter is solid?
Q: What is the pH of a solution made by mixing 25.00mL of .1500M NaOH with 25.00mL of .2500M HClO2?
A: HClO2 is Chlorous acid which is a weak acid. Weak acid dissociate weakly in aqueous solutions.…
Q: 1. Why should the potassium salts of fatty acids yield soft soaps?
A: Soaps are sodium or potassium fatty acid salts that are derived from oils or fats by reacting them…
Q: 3. Consider the following acids and their dissociation constants: H:SO:(aq) + H20(1) = H:O-(aq) +…
A: a) If Ka value is less this means that ionisation is less and if Ka value is more this means that…
Q: 3. A buffer was prepared by dissolving 15 grams if ammonium chloride in 100mL solution prepared by…
A: Given, In 100 ml solution 15 g NH4Cl is dissolved (Molar mass of NH4Cl = 53.5 g/mol) = (15/53.5)…
Q: What are the following is/are responsible for the denaturation of proteins? Select one: a. All of…
A: In living systems, protein molecules perform a variety of critical functions. Most importantly, the…
Q: if you had a protein sample solution of unknown concentration which gave an absorbance of 0.992…
A: Answer:- The standard curve gives the absorption value of aliquots having the substance of known…
Q: You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock…
A: Sodium chloride (NaCl) is a salt made of an equal composition of sodium and chloride ions. NaCl is…
Q: What are the components of a lysine buffer at pH 9.2? Refer to the following forms of lysine: A H D…
A: Lysine is a basic amino acid with an amino group in its side chain. Lysine is an important amino…
Q: 2. Four unidentified solutions of equal concentration (0.1 mol/L) were prepared by chemistry…
A: The acidity of a solution is dependant on the concentration of protons or hydronium ions in the…
Q: 8. For protein adsorption to the types of material surfaces designated below, indicate whether the…
A: Since water is the most abundant molecule within living organisms and thereby almost all…
Q: 1. If I make a solution by adding 83 grams of sodium hydroxide (NaOH) to water to give 750 mL of…
A: Number of moles (mol) = Mass (g) / Molar Mass (g/mol)Concentration (g/L) = Mass (g) / Volume…
Q: 1. Describe what will happen to the molecules of olive oil and vinegar if you shake the bottle and…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: An amino acid mixture of phenylalanine, glycine and glutamic acid is to be separated by paper…
A: Paper chromatography is the analytical process by which mixtures of complex compounds such as amino…
Q: 1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is…
A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering only the…
Q: 4) The result above occurred because the potassium permanganate crystals have a weight than the…
A: As per our company's guidelines we are supposed to answer a single at a time, please repost the rest…
Q: 6. For each pair of molecules below, circle the one that would be the better choice of the two based…
A: Phospholipids: Phospholipids are the building blocks of the cell membrane. This consists of a…
Q: 2 of 2 The student then conducts an experiment to determine the solubility of AgCl in a 2.5 M NaCl…
A:
Q: A solution of amino acid having carboxylic side chain was titrated against NaOH. If the initial pH…
A: Hello! Since you have posted multiple questions, we are answering the first two questions only.…
Q: 1. Given the following graph – The vertices are the small circles and the edges are the lines…
A:
Q: Based on the pH of your drug, if your drug was in a high concentration in the blood, how would it…
A: The drug captopril is used to treat Hypertension and conditions of heart failure as it vasodilates…
Q: 4. Would you expect the salt solution of CH,NH,Br to have a pH equal to, greater than, or less than…
A: CH3NH3Br: Methylammonium bromide. In an aqueous solution, it will dissociate as CH3NH3+ and Br- From…
Q: 4. Lipids can also be detected by a preliminary translucent spot test, also called the paper bag…
A: A translucent spot test is a qualitative assay for the determination of fats and oils. When the…
Q: 1) If you have 2.5g of hydrocortisone POWDER, how many grams of a 0.05% ointment can be compounded?
A: Hydrocortisone is the name for hormone cortisol when supplied as a medication. It can be used as…
Q: 8. In an experiment, the concentration of the pesticide Lindane (L) was determined by GC analysis by…
A: Given in the question : The peak area of lindane standard solution = 44000 (0.01 M) So, 44000 gives…
Q: A 196 g saturated solution has a solubility of 96.0 g/100 g water. If somebody sneakily sip 6 g of…
A: Solubility represents the maximum amount of a substance that dissolves in a given amount of solvent…
Q: An amino acid mixture of phenylalanine, glycine and glutamic acid is to be separated by paper…
A: Paper chromatography is the analytical process by which mixtures of complex compounds such as amino…
Q: 2. A. Draw the triacylglycerol which forms from glycerol reacting with Linoleic acid. B. Would you…
A: Biomolecules are organic molecules that function inside living organisms. They include lipids,…
Q: Melting point: what happens when the carbon chain length of fatty acids become shorter? increased…
A: Fatty acids are the long chains of the lipid molecules bonded together. These are the building…
Q: 1) If the pH of the rain drops from 6 to 5 due to air pollution, the rain has become: a) two time…
A: Acid rain caused when the rain is mixed with the volatile toxic compounds like sulfur dioxide and…
Q: 1. What is acid indigestion? How is it treated, and explain how the treatment works. 2. What would…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: In which of the following pairs of fatty acids does the first listed acid have a higher solubility…
A: A fatty acid is made of a long chain of hydrocarbon, that varies in its carbon length between 12 C…
Q: 3. What are the effects of the following solvents when mixed with lipids? What type of hydrolysis is…
A: The lipids are the chemical substances or macromolecules that are usually insoluble in water but…
Q: How many mL of distilled water must be added to make the Benzalkonium chloride preparation isotonic
A: Calculate in next step
Q: 3. You have a sucrose solution of 0.047 grams/ml. You want to prepare 100 milliliters of sucrose…
A: In the lab, the stock solution is there, which is of high concentration we can not use that…
Q: Proteins and Amino Acids A. Acid-base properties of proteins: 1. Data a. Color phenolphthalein-NaOH…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: Explain why lipids are insoluble in polar solvents. 2. Aside from their sources and physical states…
A: Lipids: Lipids are a heterogeneous group of naturally occurring organic compounds that include…
Q: 1. A solution containing polymer of an unknown structure, and with an approximate molar mass of 1.75…
A: Osmotic pressure can be defined as the minimum pressure that must be applied to halt the flow of…
Q: 1. For the test for sulfur in egg albumin, would you conclude that sulfur is present on it? Explain.…
A: Introduction Egg albumin consists of major water with proteins followed by minor amounts of…
Q: 3. How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid…
A: Given Values: The volume of the buffer = 0.5 L or 500 ml The concentration of citrate buffer = 0.75…
Q: Which lipid sample (butter/ oil) is soluble or miscible in 70% ethanol? Explain. Do you think the…
A: Solubility and miscibility are mostly interchangeably used because the resultant solution seems to…
Q: How is it possible for soap to have a pH greater than 10? What substance used in soap making that…
A: The majority of the soaps have a pH within the range of 9-10. The majority of the shampoos have a pH…
Q: 1) Based on the composition of fatty acids present in each TAG , predict which TAG (X, Y or Z)has…
A: Note : Hi ! Thank you for the question. We are authorized to answer three subparts at a time. Since…
Q: Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride…
A: %(w/v) measures mass of the solute dissolved per 100 mL of solution. Mass of the CaCl2 in solution…
Q: How do you solve question 1 and 2?
A: Answer 1: On a pH scale of 1 to 14, 1 denotes the most acidic value and 14 denotes the most basic…
Q: 1. a) Construct two molecules, each with 4 carbons, with one being soluble in water and the other…
A: Introduction Diethylamine (CH3CH2)2NH is a secondary amine that is soluble in water. However,…
Q: 1) A specific fat/oil has on over 50% of its triglyceride sites oleic acid, 28% palmitic acid, and…
A: Since you have posted multiple questions, we will answer the first one for you. If you want a…
Q: 1. What is the chemical formula for palmitic acid and oleic acid? Which one is a saturated fat and…
A: # According to our guidelines we can answer only the 1st question. So, please upload the questions…
Q: 3. a) An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL.…
A: a)The molality of potassium bromide in the solution is m = (3.50 g…
Q: 1. (a) Arrange the following lipid molecules in the order of their relative melting points. Н.С…
A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which one…
Q: structures of 2 complex lipids (a) a glycolipid and (b) a sphingolipid. Would either of these…
A: Molybdate solution test: Molybdates are compounds that contain negatively charged oxo molybdenum…
1. Why is oil liquid at room temperature, while butter is solid?
2. Which of the following lipid sample is soluble or miscible in water? Explain.
a. Oil
b. Butter
3. Which lipid sample mentioned in number 2 is soluble or miscible in 70% ethanol? Explain. Do you think the solubility of the lipid samples will change if 100% ethanol is used instead?
Step by step
Solved in 3 steps
- 1. a. Explain why the melting point of palmitic acid (16 carbons, no double bonds) is slightly lower thanthat of stearic acid (18 carbons, no double bonds). Explain why the melting point of oleic acid (18carbons, one double bond) is lower than that of stearic acid b. A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, andphosphatidylethanolamine was applied to a hydrophobic interaction chromatography column. Thecolumn was washed with a high salt buffer, and the lipids were then eluted with decreasing saltconcentrations. In what order would the lipids be eluted from the column? Explain your answer.1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is the solvent? What is the solute?2) If a solution contains 128 mL of ethanol and water to make 0.452 L of solution, what is the (v/v)% concentration?3) How many grams of sodium carbonate are needed to make 350 mL of a 0.5% (w/v) sodium carbonate solution?4) What is the molarity of a magnesium chloride solution made by dissolving 8.7g of magnesium chloride in 2.45 L of water?5) An exercise in lab requires you to make 500 mL of a 2.3M beryllium sulfide solution. How many moles of beryllium sulfide will you need?6) How many grams of sodium chloride are needed to make 0.60L of a 2.3M sodium chloride solution?7) How hot must the air in a balloon be heated if initially it has a volume of .750 L at 20°C and the final volume be 1.00 L?8) Convert 455 mmHg to atm.9) A container of gas has an initial pressure of 0.8 atm. The pressure is increased to 1.1atm and the final volume of gas is 2.3 liters.…70 degree Celcious is the melting point of stearic acid, and 4 degree Celcius is the melting point of oleic acid. Explain using the concept of lipids why their melting point is so different.
- 1.0 ml of serum albumin (BSA) solution was precisely diluted to 100 ml with a buffer solution, and the absorbance at 280 nm was measured from this buffer solution at a distance of 1 cm from the light. The result was A=1.0. BSA is 0.1%(=0.1g/l). The absorptivity is e(0.1%)=0.667, so 1g/l solution gives an absorbance of 0.667. What was the original protein content? Report in the result unit mg/ml with an accuracy of 0.1 mg.3. Diet Big Red soda contains citric acid, as shown in the ingredient list below, Carbonated Water, Citric Acid, Natural and Artificial Flavors, Sucralose, Sodium Benzoate, Caffeine, Malic Acid, Red 40, Acesulfame Potassium, Phosphoric Acid, and Acacia Gum What are two obvious reasons that we did not try to determine the citric acid content in a "flat" sample of Diet Big Red soda?1. For the test for sulfur in egg albumin, would you conclude that sulfur is present on it? Explain. 2. If sulfur is present in egg albumin, what are the possible organic compounds which contains sulfur on it? You can search the internet for this. Cite your references.
- In a 0.1000 M acetic acid solution at 25 degrees celsius , the acid ionizes to the extent of about 1.34 %. Since each molecule of acetic acid which ionizes produces 1 H+ ion and 1 C2H3O2- ion, the concentration in the solution are: HC2H3O2 < -----------> H+ + C2H3O2-3. a) An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL. The molality of potassium bromide in the solution is _________m. b)An aqueous solution of magnesium nitrate has a concentration of 0.474 molal. The percent by mass of magnesium nitrate in the solution is _________%. c)An aqueous solution of cobalt(II) bromide has a concentration of 0.153 molal. The percent by mass of cobalt(II) bromide in the solution is _________%.3. What are the effects of the following solvents when mixed with lipids? What type of hydrolysis is present when mixed withthose solvents? Explaina. waterb. CCl 4c. Etherd. CHCl
- 3. What are the effects of the following solvents when mixed with lipids? What type of hydrolysis is present when mixed withthose solvents?a. waterb. CCl 4c. Etherd. CHCl 4. Explain enzyme hydrolysis.1, How is it possible for soap to have a pH greater than 10? What substance used in soap making that can give it such basic properties?1.) A sample contains 0.003 mg of NaOH. How many micrograms (μg) is this? 2.) An experiment was performed in which 400 mL of 0.2 M urea was used. Calculate the number of millimoles (mmol) of urea contained in this sample. 3.) How many micromoles (μmol) of ATP are present in 4 mL of 5 mM ATP solution..
