A 5.78 g sample of an alkaline earth metal nitrate, M(NO3)2, is dissolved into 20.62 gof water. The boiling point of the solution is 102.03 °C. Calculate the molar mass of the solute.

Q: calculate the freezing point of a solution containing 0.600 kg of CHCl3 and 42.0 g of eucalyptol…

A: Freezing point: The temperature at which a liquid turns into a solid. The formula for calculating…

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

Q: The vapor pressure of 0.388 g of a pure substance is 0.631 atm at 20degree celcius (the molar mass…

A:

Q: Calculate the freezing point of a solution made by dissolving 1.00 mole of NaCl in 1000. g of H2O.

A: We will use formula of ∆Tf. ∆Tf=Tf°-Tf

Q: GIVE EXAMPLES OF SOLIDS THAT DECREASE ITS SOLUBILITY IN WATER AS TEMPERATURE INCREASES.

A: Solubility is the property of dissolution of a solute in a solvent to form a solution. Dissolution…

Q: Camphor 1C10H16O2 melts at 179.8 °C, and it has a particularly large freezing-point-depression…

A: Colligative properties are the properties of the solution that depend on the number of moles of…

Q: A solution of H2SO4(aq) with a molal concentration of 1.94 ? has a density of 1.119 g/mL. What is…

A:

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: According to colligative properties, the depression in freezing point is given as - ΔTf = Kf * m…

Q: (a) Use the following data to calculate the enthalpy of hydration for calcium chloride and calcium…

A:

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough water to make…

A: The mixing of certain non-volatile substances also known as antifreeze tends to lower the solvent's…

Q: Determine the boiling-point elevation of a 2.5​m​ water solution of MgCl​2.​

A: The elevation in boiling point (∆Tb )is calculated with the expression given below in which i is the…

Q: These following things are colloid properties, except- a) Composed of 2 phases b) stable c)…

A: as per my assumption it is option- C Homogenous as Colloid is of heterogenous nature not homogenous…

Q: The vapor pressure of ethanol is 58.7 torr at 25 °C. Determine the vapor-pressure lowering, ΔP, of…

A:

Q: Calculate the freezing point of a 2.6 m aqueous sucrose solution

A: The freezing point of the given sucrose solution can be determined as follows, ΔTf = kf x m ΔTf =…

Q: Calculate the molality of a 37.1% (by mass) aqueous solution of phosphoric acid (H3PO4). Calculate…

A: Any compound's concentration gets depicted through its mass percentage (% concentration). Any…

Q: Calculate the mole fraction of a solution containing 2.6g of sodium sulfate in 20g of water.

A: Given: Mass of sodium sulfate = 2.6 g Mass of water = 20 g Molar mass of sodium sulfate = 142.04…

Q: when 5.0g of an unknown substance is dissolved in 100.0g of water, the freezing point of the…

A:

Q: Calculate the mole fraction of MgC l 2 in a solution createdby dissolving 132.1 g of MgC l 2 in 175…

A: The given data contains, mass of MgCl2 = 132.1 g. Volume of water = 175 ml.= 0.175 L.

Q: Calculate the vapor pressure of an aqueous solution when 164 g of glycerin, (Mr. 92.0 g/mol) is…

A:

Q: Given that an aqueous solution of ethylene glycol in water has a vapor pressure lowering of 16.0…

A:

Q: Calculate the freezing point of a solution of 25 mL of CH3OH (d = 0.792 g/mL) in 325 mL of water (d…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: Calculate the molality of a solution prepared by dissolving 13.7 g of sodium hydroxide (NaOH) in…

A: The molality of a solution is calculated by the formula, m=msMs×mS×1000......(1) Where, ms is the…

Q: Calculate the freezing point of 1.5 moles of C6H12O6 dissolved in 1kg of water?

A: The molality of the given solution is calculated using equation (1). In this equation m represents…

Q: 1.812 grams of an unknown compound is dissolved into 77.7 grams of benzene, an organic solvent with…

A:

Q: Determine the molality of a 5.001 wt % aqueous solution of LICl.

A:

Q: The molal freezing point constant for water is 1.86 oC/m. At what temperature will a mixture of 2.00…

A: Given,  The mass of CaCl2 = 2.00 g.                            The mass of water = 25.0 g.…

Q: A solution consisting of a molecular substance of mass 1.14 g dissolved in 100. g of camphor freezes…

A:

Q: Water has a molal freezing point constant of 1.86°C kg/mol.  Calculate the freezing point of 37.378…

A: Given  molal freezing point constant of  water = 1.86℃ kg/mole Mass of CaCl2  = 37.378 gram  Mass of…

Q: After the addition of 24 g of ethanol (CH;OH) to 1 kg of water, the freezing point of the solution…

A: ∆Tf = Kf .m  Where  ∆Tf = (T° - Ts)  Where  T° =freezing point of pure water = 273 K  Ts =freezing…

Q: What is the mole fraction of methanol in this solution?

A: The temperature point at which the vapor pressure of a solution becomes exactly equal to the…

Q: 15 g of an unknown molecular substance was dissolved in 450 g of water. The resulting solution…

A: Given that : Weight of Unknown Molecular substance (Wsubstance) = 15g Weight of water (Wwater) =…

Q: Calculate the molality of a solution composed of 4.5g of AgNO3 in 250mL of aqueous solution.

A: The answer to the following question can be calculated as -

Q: How many grams of NaOH is required to prepare 20L of 0.75N solution? What is its molarity, molality,…

A:

Q: The molality of potassium bromide, KBr, in an aqueous solution is 2.62 mol/kg. What is the mole…

A: 2.62 moles of KBr are present in 1000 g of water. The number of moles of water can be calculated as…

Q: Calculate the molal concentration , m of a solution that contains 20g of Magnesium hydroxide Mg(OH)2…

A:

Q: Which of the following aqueous solutions should have the lowest freezing point: 0.0500m C6H12O6,…

A: Depression in freezing point is defined as the depression in freezing point of water on addition  of…

Q: Explain the existence of colligative properties using the concept of chemical potentials.

A: Colligative properties

Q: Calculate the grams of glucose that must be added to 2.85 kg of H2O at 65 degrees Celsius to lower…

A:

Q: Calculate the freezing point of a 1.7 m aqueous ethylene glycol solution.

A:

Q: Calculate the freezing point of a glass of water of volume 200 cm3 in which 10 g of glucose has been…

A: Given,  The freezing point of a glass of water of volume 200 cm3in which 10 g of glucose has been…

Q: The vapor pressure of pure water at 85° C is 434 torr. What is the vapor pressure at 85° C of a…

A: The vapour  pressure of the solution containing non-volatile solute can be determined by using the…

Q: Describe the behavior of Ideal and Nonideal Solutions?

A: Raoult's law states that at a given temperature, the partial vapor pressure of any volatile species…

Q: What is the boiling point elevation of a 1 molal aqueous solution?

A: Elevation in boiling point is observed when a non-volatile solute is added to a pure solvent to form…

Q: A sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of…

A: The molar mass of the compound is to be calculated

Q: 8.Ethylene glycol (EG), CH2(OH)CH2(OH), is a common automobile antifreeze. Calculate the freezing…

A:

Q: Calculate the molality of an alcohol in aqueous solution if the mole fraction of the alcohol is…

A:

Q: Whilst investigating the combustion of hydrocarbon fuels, a student collected the gases released and…

A: Hydrocarbons are molecules composed of hydrogen and carbon only. Combustion reaction is a reaction…

Q: The molal elevation constant for water is 0.513 °C kg mol–. When 0.8 mole of sugar is dissolved in…

A:

Q: A bottle of phosphoric acid is labeled “85.0% H;PO, by mass; density = 1. 689 g/cm2." Calculate the…

A:

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.