Which part of sodium stearate, head or tail, is more likelyto be solvated by water?

Q: houd How many foam from поту до are needed to prepare 1.5 L cef 어 1.8m eahpoy Solution ?

A: Molarity of a solution is calculated by dividing the number or count of moles of the solute by the…

Q: Your chemist friend, Laqueefa Farthing, has isolated an unknown compound that shows an observed…

A: Intermolecular forces are the forces of attraction or repulsion which act between neighboring…

Q: calculated

A: Part 1: We know that molarity is defined as the number of moles of solute present in per liter of…

Q: What volume of aztreonam (50 mg/ml) must be added to 500 ml of Mueller-Hinton broth to yield a…

A: Formula used: C1V1=C2V2

Q: how many ml of HCl 37% in weight and with a densityof 1.18 g/mL is needed to prepare 100.0 mL of HCl…

A: Given in question : % V/V of alcohol = 37 % density = 1.18 g/ml Required HCl ; Volume = 100 ml…

Q: Prepare 500 mL of 10% formalin from commercial formaldehyde

A: Given Volume of Stock Solution = V1 Concentration of Stock = C1  Volume of Working Solution = V2…

Q: Chemistry   Discuss the possible consequences of injecting the concentrated injectable suspension…

A: Subcutaneous means under the skin. In this type of injection, a short needle is used to inject a…

Q: Imagine that phenol ("hydroxybenzene") and nitrobenzene are reacted (in separate beakers) with a hot…

A: HYDROXY GROUP OF PHENOL IS A ORTHO -PARA DIRECTING GROUP THAT MEANS  IT ACTIVATE RING AT ORTHO&…

Q: A mixture of chlorobenzene and bromobenzene forms nearly ideal solution but a mixture of chloroform…

A: Ideal solutions: It is the solutions that obey Raoult's law on full range of the concentration and…

Q: How many f3 of a 29% w/v hydrogen peroxide solution will result from mixing 7 pints of 4% wiv…

A: A pint is a unit of volume = 0.57 L And, 1 fz = 0.030 L

Q: Between Whatman No. 1 filter and 3% KCI solution, which is more polar?

A: Polar compound are those in which there is electronegativity difference between the atoms.

Q: how many hydrogen bond acceptors are there in pantoprazole?

A: If we consider any hydrogen bond, there consists a donor and an acceptor part. The donor part is the…

Q: Arrange the ff. into the correct order of recrystallization: a. prepare hot solution b. slow…

A: Concept - Recrystallization is a technique used to purify solid compounds. Solids tend to be more…

Q: Pure benezene boils at 80.1 C and has a Kb of 2.53 C/m. If 120.0 g of iron sulfide are dissolved in…

A:

Q: Classify the pootic, Apootic and Amphipotica following solvents as (i) CHcl3 () CH3 C00 H (iv) Hz…

A: Since you have posted questions with multiple subparts, we will solve the first three sub parts for…

Q: Why can't a mixture of water and diethyl ether be used for recrystallization?

A: Recrystallization is used to purify the solute that can be dissolved in the given suitable solvent…

Q: 1. What is the effect of varying the amount of solvent on the electrical conductivity of solution?…

A: 1. The more concentrated a solution is, the higher the conductivity is. In most cases it is a…

Q: how would you prepare a solution of 0.02% v/v toluene in n-hexane?

A: % v/v is the volume concentration of a solution or stated as volume per volume. This is used when…

Q: If a small amount of impurity is present in a sample, what will be its effect on the melting point…

A: Types of impurities that can be present in the sample: Miscible impurity: Such impurity is soluble…

Q: Will heating beef tallow in the presence of acid instead of base produce soap?Explain.

A: The reaction of fatty acids with bases to form salts of fatty acids, these are known as soaps.

Q: In the box below, draw 3 or 4 models of Nacl and 3 or 4 models of H,O. Make sure all of good at…

A:

Q: Briefly explain any tw (2) dispersion method in preparing sols.

A: Mechanical dispersion method: In this method, the large particles of the material whose sol is to be…

Q: enthalpy of formation of ammonium salts a) Explain how (temperature change) would be affected if a…

A: A solution’s depends on the amount of solute dissolved in a solvent at a particular temperature. An…

Q: Write the formula for a micelle of a NiS sol obtained in the reaction NiCl2 + H2S →… if the…

A: Introduction: A micelle is the colloidal suspension form by the aggregation of surfactant molecules…

Q: While a student was preparing a series of standards, the pipette that he used for dilution was not…

A: The pipette used for the analysis was not clean. How this affect the result for the unknown sample…

Q: POST-LABORATORY QUESTIONS Due after Laboratory Experiment 1. While performing the Dumas experiment,…

A: ¶1):-> Step 1 Dumas experiment is used to determine the molecular weight of a substance which are…

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: While determining the pressure during the Dumas experiment, if the barometric pressure reported were…

A: Given: The barometric pressure reported was lower than the actual vapour pressure in the Dumas…

Q: What should you do if some M HCl drips down the outside of your graduated cylinder while you are…

A: Given : HCl drips down the outside of graduated cylinder while filling it.

Q: What is the procedure of Labxchange Simulation Micropipetting Solutions? Or simply what are the…

A: Micropipettes are the adjustable and precision instruments used to transfer the volumes of the…

Q: What are the answers for these questions? 2.Why are there bubbles escaping from the open end of the…

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

Q: How the concept of vapor pressures would differ between simple distillation and steam distillation…

A: The solution  of the question is given below:

Q: solve as neatly as possible and show complete solution. Round your final answer to 4 decimal places…

A: Solution-

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: Assuming an initially impure sample of acetaminophen, would you expect its melting point to change…

A: After recrystallization  melting point of acetaminophen is decreased.  We know that melting point is…

Q: what chemical equation produce when 5 mL of concentrated hydrochloric acid and 3 drops of 2%…

A: Normally Vanaspati is prepared from vegetable or seed oil by the hydrogenation process. It is…

Q: While performing the Dumas experiment, if the outside of the flask were not completely dry (Part I),…

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

Q: Why should Ne be less soluble in water than 02? Please choose the answer the best explains the…

A: The solubility of any covalent compound is based on the intermolecular forces of attraction. More…

Q: Why does micelle formation take place when soap is added to water? Will a micelle be formed in other…

A: When we will add soap in water. There are two ends of soap molecule, one end is hydrocarbon chains…

Q: Compare the simple distillation of pure hexane and binary mixture of hexane and toluene to that of a…

A:

Q: What volume of water at 20.0 °C (d = 0.9982 g cm3) is needed to dissolve 36.1 g of sucrose to make a…

A: What volume of water at 20.0°C (d = 0.9982 g cm 3) is needed to dissolve 36.1 g of sucrose to make a…

Q: How would you interpret this difference depending on their molecular structure ?

A: inter molecular forces

Q: which procedure will produce 200ml of a solution that is 2.5%by volume alcohol of water?

A: The percentage by volume of the solution is 2.5 %. The V/V % can be calculated by the following…

Q: Determine the mole fraction of p-dichlorobenzene dissolved in 1.00L of cyclohexane that shifts the…

A: Here, we have to determine mole fraction and mass of p-dichlorobenzene (solute) dissolved in 1.00L…

Q: How would you prepare 2L of 1M MgCl2 from a 5M MgCl2 stock solution?

A: The volume of stock solution required to prepare the 2L of 1M MgCl2 is calculated by considering the…

Q: Compare the percentages of water for each trial?  Are they close to one another?  Why/why not?…

A: Given: percentages of water for each trial: trial 1 = 28.6% trial 2 = 29.8% trial 3 = 24.8% trial 4…

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 ethenol should be mixed with 225 ml of water to make 4.5% (v/v) mixture

A: Suppose Volume of ethanol is =y ml Volume percent v/v % = [(volume of solute)/(volume of solution)]…