Which of the steps described here prevents the contamination of just-washed hands? use of a paper towel to turn off a faucet O lathering under running water for 30 seconds wetting the hands before applying soap use of hot water.

Q: Terpin hydrate elixir should have _ mL of alcohol to make 250 mL elixir to ensure it will have 43%…

A: Given:: Volume of elixer = 250 ml  Strength of alcohol = 43% Volume of alcohol = ?

Q: Dilution means adding water to something so that the ratio of solute to solvent is less than in the…

A: When the amount of solute is dissolved in a solvent to make a homogenous mixture are known as…

Q: A student observes crystals at the bottom of a flask that contains a solution of LiBr in water.…

A: Interpretation: We have to check whether crystals will be forming or not when LiBr is taken in…

Q: For each of the electrolytes measured in Suzie’s blood tests, indicate whether the test indicates…

A: 1) Sodium (Na+): 126 mmol/L     Sodium level in the blood is below normal . The normal values has to…

Q: Assume that a water sample tested has 150 mg/L total hardness. The Mg hardness is 50 mg/L,Ca…

A: Total Hardness = Hardness due to Magnesium + Hardness due to Calcium OR Total Hardness = Temporary…

Q: 3 Ways to separate Alcohol, water, diesel and blood and its step by step procedure

A: 1) Centrifugation- Blood is mostly water but the platelets and cells in blood can be separated by…

Q: Table 1: Absorbance of X solution (575 nm)     Concentration (mg/ml)   Absorbance 0.025…

A: The relation between absorbance and concentration can be given as follows; A = e C l Where, A =…

Q: Which of the following is a way of conserving water? Leave the shower running while soaping Use a…

A: Correct Answer is option (D)

Q: Which solution is placed inside the buret? NaOH O vinegar O water OKHP

A: Which solution is placed inside the buret?

Q: The Earth’s oceans have a salinity of 35. What is the concentration of dissolved salts in seawater…

A: Given that salinity of earth’s ocean is 35. Thus, mass of salt in one kilogram of water is 35 g and…

Q: Why do Sedimentation and filtration is important in water treatment? Is a period of timeimportant in…

A: Any process that improves the quality of water to make it suitable for a specific end-use is known…

Q: Rank the following soaps/detergents based on their effectiveness as a cleaning agent in hard water…

A: Soap is a cleaning agent; in hard water the cleaning capability get reduced. Hardness of water is…

Q: Perform calculations to determine the amount of 5.00x10-5 M stock solution needed to prepare 20.00…

A: The dilution of solutions is an important process in chemistry that involves reducing the…

Q: What is the purpose of environmental remediation? to restore water to its original purity levels to…

A: Environmental remediation has the purpose of lower the exposure of radiation from contaminated…

Q: The maximum safe level of a chemical in drinking water is determined to be 52 μg per kg of water.…

A:

Q: 1: you will make 10ml of 200μg/ml. (Hint: Use C1V1=C2V2) How much 1000μg /ml BSA will you add to…

A:

Q: Part B Follow these steps to complete the table: 1. Reuse the same test tubes from part A, labeled…

A: Here we have to write what happens when iron(2) sulfate and iron(3) nitrate react with potassium…

Q: Explain how drying, salting, fermentation, canning, and freezing preserve food.

A: how drying, salting, fermentation, canning, and freezing preserve food.

Q: An action will elevate the concentrations of three chemicals in the drinking water supply: 1,1,1-…

A: The concentration of these chemicals in drinking water is much higher than said to be safe for…

Q: Most of us have had a glass of water from a Brita® pitcher. What is inside of a Brita® filter…

A: The Brita filter cartridge is composed of copolymer of styrene methyl methacrylate.

Q: 24. The dose of AUGMENTIN oral suspension for a patient is 5 mL b.i.d. Each 5 mL of suspension…

A: Given that,  The dose for patient = 5 mL And number of times taken in a days  = 2 times  (b.i.d.)…

Q: In the lead content analysis of a wastewater sample, 50.00 mL of the original sample was taken and…

A:

Q: What are biodegradable and non-biodegradable detergents ? Give one example of each.

A:

Q: . You have a concentrated stock solution of bacterial LPS in water that has a concentration of 1…

A: Since the dilution factor is inversely proportional to the concentration of the solution.

Q: Why do Sedimentation and filtration is important in water treatment? Is a period of time important…

A: The sedimentation process is most important process which is imposed for the reduction of…

Q: Use the information in the ALEKS Data tab to sort the following chemical species by oxidizing power.…

A: Given species: Zn2+(aq) Ag+(aq) Mg2+(aq) Ca2+(aq) We have to sort these species by oxidizing…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.