33. What mass of water (in kg) is required to make 0.75 molal solution containing 369g of magnesium chloride?

Q: A glucose solution contains 55.8 g of glucose(C6H12O6) in 455 gof water. Determine the freezing…

A: Given data contains, Mass of glucose is 55.8 g. Mass of water is 455 g. The moles of glucose is…

Q: How many grams of iyodide (I2) should dissolve in 725 mL carbon disulfide (CS2) with a density of…

A: Volume of carbon disulfide = 725 mL Density of carbon disulfide (ρCS2) = 1.261 g mL-1 Mass of carbon…

Q: An aqueous solution is made by dissolving 17.3 grams of chromium(II) acetate in 351 grams of water.…

A: Number of moles of chromium(III) acetate = 17.3 g / (229.13 g/mol) =0.075 mol.

Q: 51. These statements are INCORRECT, EXCEPT: * a. Vapor pressure the measure of volatility of a…

A: In the given question we have to choose the correct option from the following and explain. In the…

Q: 38.5 grams of copper(iii)sulfate is mixed in 140 ml of water. Calculate the molal concentration of…

A: Given; Mass of solute=38.5g Volume of the solution=140ml Formula: Molarity=moles of solutevolume of…

Q: Calculate the molality of solution consisting of 2.522 moles of water and 33.8 moles of ethanol.…

A:

Q: How much water should you add to 223 g of Sodium Chloride to prepare a solution with  a molality of…

A:

Q: imagine two solutions with the same concentration and the same boiling point, but one has benzene as…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing…

A: The question is based on the concept of solutions. molality is defined as number of moles of solute…

Q: How do I use the molality of a substance to calculate the molar mass? Example: molality is .122M of…

A: Given:Molality = 0.122 m = 0.122 mol/Kg.Mass of the solute = 0.346 g.Mass of solvent = 7.79 g =…

Q: C. Calculate the boiling point and freezing points of the following aqueous solutions: (ii) 0.500%…

A:

Q: How many moles of solute are in a 2 molal solution if there is 4790g water?

A: Molality can be calculated as below:

Q: what mass of water should be used to dissolve 20 grams of ethanol, to prepare 0.0500 molal solution…

A:

Q: 47 g of NH3 are dissolved in 50 g of water at 20 deg C. Is the solution unsaturated or saturated or…

A: In this question, we want to determine Ammonia NH3 Solution is saturated or unsaturated or…

Q: . 190 g of CuSO4 are placed in 3500 g of water. Determine the molality.

A: Given Data :  1. Mass of CuSO4 ( Solute) = 190 g  2. Mass of Water ( solvent) = 3500 g…

Q: An aqueous solution of chromium(II) nitrate has a concentration of 0.447 molal. The percent by mass…

A: An aqueous solution of Chromium(II)nitrate has a concentration of 0.447 molal.

Q: The percent by mass of ethanol (MM = 46.07 g/mol) in an aqueous solution is 23.7%. What is the…

A:

Q: In how many grams of water should 20.10 g of potassium nitrate (KNO3) be dissolved to prepare a…

A: The concentration of a solution says about the amount of solute that is present in the solvent…

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A:

Q: The percent by mass of glucose (MM = 180.2 g/mol) in an aqueous solution is 22.5%. What is the…

A: Given: Percent by mass of glucose = 22.5 %. Assuming 100 g of the solution.

Q: A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample…

A: molality is mass of solute dissolved in per kg mass of solventmolality = moles/kg of solvent

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.53.…

A: Let's assume the mixture of two volatile substances and their vapor behaves ideally. Applying both…

Q: a. Is -8.0C°. What is the molal concentration of the solution? (K; =-1 a-1.86 b-4.3 C-4.5 d-14.8…

A: Given,  Freezing point of the solution = Tf =  - 8.0 0C What is the molal concentration or molality…

Q: Please help me

A: The number of moles of solute to the weight of the solvent in (kg) is known as molality.

Q: 5:17 Determine the boiling point of an aqueous solution composed of 111.0 g ethanol (CH3CH2OH)…

A: Given, mass of ethanol = 111.0 g mass of water = 400.0 g = 0.4 kg Boiling point of the solution…

Q: Concentration of NaOH in HCl is 2.57% by mass. Density of HCl is 1.2g/cc. Determine molality of…

A: Relationship between %by mass and molality m=%by weight×1000/Molar mass of NaOH×(100−%by weight)…

Q: An aqueous solution of calcium acetate has a concentration of 3.13×10-2 molal. The percent by mass…

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

Q: the

A:

Q: What mass of BaCl2 is needed to be dissolved in 1200 g of water to prepare 0.5-molal BaCl2 solution?

A: Molality is defined as the moles of solute that are present in 1 kg of solvent. The formula for…

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A:

Q: a solution contains 22.44 grams of NaCl in 0.270 kg water at 25 celsuis. what is the vapor pressure…

A:

Q: mass percent

A:

Q: A sample of 1.3 molal aqueous solution of sodium chloride contains 6.4 grams of sodium chloride…

A: Molality = moles(solute) / mass(solvent in kg)  Solute = sodium chloride = NaCl Solvent = water…

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.89.…

A: Sum of mole fractions in a mixture can be taken as 1 Mole fraction of A = 0.89 Mole fraction of B =…

Q: What molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is…

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for…

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Q: A 75.0 grams of MgCl2 is dissolved in 500.0 g of water. Calculate the molality of the solution.…

A:

Q: Calculate the mass % of naphthalene(C10H8) in 50.0g of methanol to obtain a vapor pressure of 118…

A: Given: The solute is naphthalene(C10H8) and the solvent is methanol(CH3OH). The pure vapor pressure…

Q: Calculate the mass percent of the solute in a solution containing 19.5 g NH4Cl in 485 g of water.…

A:

Q: What is the molality of a solution with a percent mass of 33.5% of sodium perchlorate?

A:

Q: 21- 36 g of glucose (molecular mass 180) is present in 500 g of water, the molality of the solution…

A: As per guidelines, if multiple questions are present , then first question is allowed to answer…

Q: A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of…

A: Molal concentration of the solution is to be calculated when the solution has 20.5 % by mass of…

Q: Calculate the number of moles of solute present in 55.0 mg of an aqueous solution that is 1.40 m…

A: The molality is given as follows,

Q: An aqueous solution of ammonium nitrate has a concentration of 0.238 molal. The percent by mass of…

A: Molality (m) is defined as the number of moles of solute dissolved per kilogram of the solvent, i.e.…

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A:

Q: A sucrose (C12H22O11) solution that is 45.0% sucrose by mass has a density of 1.203g/mL at 25°C.…

A: Since you asked a question with multiple sub-parts, we will solve first three sub-parts for you. If…

Q: How many grams of sodium chloride are contained within a 35.0 gram sample of a 3.00 molal aqueous…

A: Given mass of sample = 35 g molality = 3 molal

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.