What is the full form of ppm ? For what purpose it is used.

Q: The Kep of magnesium hydroxide is 2.06 x 10-13 What is its solubility in g/100 g H20? Density of…

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Q: A certain liquid X has a normal boiling point of 93.90 °C and a boiling point elevation constant K =…

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Q: The binary compound M2X has a solubility of 7.4 × 10−7 mol/L and a molar mass, ℳ = 160.53 g/mol.…

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Q: Convert these values 5.0 mg/L seawater to ppm

A: The mass of solute in mg present in a one-liter solution is known as ppm (parts per million)…

Q: The binary compound MX2 has a solubility of 0.014 g/L and a molar mass, ℳ = 114.68 g/mol. Calculate…

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Q: THE ACCEPTABLE LEVEL OF COPPER THAT CAN BE FOUND IN DRINKING WATER IS NO MORE THAN 1.3 ppm. A SAMPLE…

A: Given : Safe concentration of copper in drinking water < 1.3 ppm. Mass of water sample = 5000 Kg…

Q: How much of glucose (C,H1,06) is needed to make 1 L of a 1-M solution? Use details to support your…

A: The molarity is the concentration term which is the number of moles of solute present in per liter…

Q: Is dehydration/ hydration of CoCl2 a chemical or physical change? and why?

A: In a physical process, molecules of a substance do not lose identity and the structure of molecules…

Q: How many grams of oxygen and carbon dioxide are consumed and formed, respectively, during the…

A: Note: Since you have posted multiple questions, we will provide the solution only to the first…

Q: A 5.04 g sample of a solid containing Ni is dissolved in 20.0 mL water. A 5.00 mL aliquot of this…

A: concentration of Ni in 20mL = 5.53ppm x dilution factor…

Q: 2. If the patient is to be given 120 mcg of levothyroxine via IV infusion and the vial contains 0.4…

A: There are various units of mass used for any system-  1- microgram = mcg 2- milligram = mg 3- gram =…

Q: 1 What mass of solid radium sulfate (the most insoluble compound known) will remain when 10 L of a…

A: The answer to the following question is-

Q: A 50.0-g sample of industrial wastewater was determined to contain 0.48 mg of mercury. Express the…

A: GIVEN: Mass of sample=50.0g  Mass of mercury= 0.48 * 10-3g To Solve: mercury concentration of the…

Q: etermine the change in temperature of the system after dissolution of the various salts in water.…

A: 1.) Temperature can be can be calculated using the final temperature and initial temperature.  2.)…

Q: Draw a more accurate representation of one unit of C6H12O6 dissolved in water

A: To write the representation of one unit of C6H12O6 dissolved in water we have to write the Molecule…

Q: The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in…

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Q: Determine the exact hardness in units of mg/L as CaCO3. Ba2+ contributes to hardness as well.

A: Given that,

Q: A sample of seawater contains 1.9 g of calcium ions in 5364 kg of solution. What is the calcium ion…

A: Given  Mass of solute (calcium ions) = 1.9 g Mass of solution = 5364 kg = 5346×103 g Concentration…

Q: Consider substances A and B. Substance A is soluble in hot water, but not in cold water. Substance B…

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Q: Show the complete solution. 1. 3H2 (g) + O3 (g) → 3H2O 2. N2O (g) + NO (g) → 3NO 3. CaC2  (s) +…

A: 1. 3H2 (g) + O3 (g) → 3H2O 2. N2O (g) + NO (g) → 3NO3. CaC2  (s) + 2H2O (l) → Ca(OH)2 (s) + C2H2 (g)

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: A 42.2 g sample of ground water is found to have a lead concentration of 17.77 ppm. Calculate the…

A: Mass of solute present in 106 or 1 million mass of solution is known as ppm concentration.

Q: Room temperature:   295.9 K Barometric pressure:   769.0 mmHg Vapor of water:   21.1 mmHg Volume of…

A: The balanced chemical reaction of dissociation of hydrogen peroxide is given by

Q: An ore of silver contains 86.7 grams of silver, Ag per ton of ore. What is the concentration of…

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Q: What is the concentration in parts per million of DDT in each of the following? Part 1 of 2 9.0 mg…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: The solubility of potassium nitrate is 155 g per 100 g of water at 75°C and 38.0 g at 25°C. What…

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Q: The maximum safe level of each compound in drinking water is given below. Convert each value to…

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Q: Questions: 1. CHM-202 Lab 2 Freezing Point Depression Rev2 G6-2022 10/14 From your understanding of…

A: Hi! Thank you for the question As per the honor code, We'll answer the first question since the…

Q: Sodium carbonate (Na2CO3Na2CO3) is used to neutralize the sulfuric acid spill. How many kilograms of…

A: Since here the reaction taking place will be, Na2CO3 + H2SO4 ----> Na2SO4 + H2O + CO2 Hence we…

Q: Calculate the heat energy in kcal evolved as 7.58 L of water freezes at 0.0°C.

A: We will calculate heat in Kcal

Q: 4. The solubility of sucrose is 320 g/100 g H20 at 70°C. a. How much sucrose can dissolve in 200 g…

A: a) Since the solubility of sucrose will be determined by: 320100 = x200x = 320 × 200100x = 640 g So,…

Q: A closed room is contaminated by carbon monoxide (CO) at a level of 50 ppmv. Knowing the density of…

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

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Q: A 1295 mL sample of drinking water was found to contain 91.5 mg of lead. Calculate the concentration…

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Q: 1 Sr(NO3)2 (aq) with 9.8 X 10" aq)? of the following is entirely 3.5 x 107, ppt forms 2.5 x 10-11,…

A: SrF2 ----> Sr2+(aq.) + 2F-(aq.) Reaction Quotient  Qsp = (6.6×10-2)(9.8×10-6)2 = 6.34 ×10-12

Q: Room temperature:   295.9 K Barometric pressure:   769.0 mmHg Vapor of water:   21.1 mmHg Volume of…

A: The ideal gas law equation is expressed as:

Q: the concentration of TCE at standard conditions (0oC and 1 atm) is 15 μg/m3 , what is the…

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Q: Which of the following can be used to measure a very small concentration (much less than 1% m/m)?…

A: Given: Mass percent of solute is much less than 1 % (m/m) (assuming its 0.0001 %). Assuming 100 g of…

Q: 114.7 mg of NaCl (MM=58.44 g) is dissolved in 246.42 L of water. What is the concentration of Na+…

A: A numerical problem based on concept of solutions, which is to be accomplished.

Q: 14. The concentration of the original unknown protein solution is determined to be 0.2173 mg/mL.…

A: Given, Concentration of the protein solution = 0.2173 mg/mL Concentration of the protein solution =…

Q: The maximum level of lead allowed in drinking water is 15mg/kg. What is this concentration in units…

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Q: Given that the solubility of salicylic acid at room temperature is 0.2 g/100 mL of water? How much…

A: Solubility is the maximum amount of any compound or substance (Solute) that can be dissolved in…

Q: Which chemical or functional group helps a molecule dissolve in water?  NH2 (amino group) fats…

A: Water is a polar solvent and it can dissolve an ionic or polar covalent compound.

Q: Convert a healthy plasma concentration of human growth hormone (hGH) 5.5 ng/mL) to a percentage.

A: Since it is not mentioned that to which percentage we have to convert the concentration i.e whether…

Q: A sample of 250.0 g of water is found to contain 148 mg Cd. What is this concentration in ppm?

A: Given that, We have a sample which contains 148 mg Cd in 250 g of water. We have to determine the…

Q: The boiling point of 20.0 g of Ca(NO 3 ) 2 dissolved in 500.0 g of water would be ? kb =0.512^ C/m

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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.