Pure cyclohexane, C 6 H 12 , has a freezing point of 6.53 ° C. Its freezing point depression constant is: K f = 20.0 ° C m -1 . A solution was made by taking 18.55 g of an unknown nonelectrolyte and dissolving it in 150.0 g of cyclohexane. The measured freezing point of the solution was 4.28 ° C. Calculate the molecular weight of the unknown substance

Q: Use the References to access important values if needed for this question. The nonvolatile,…

A: Molecular weight of Ethylene glycol = 62.10 g/mol Mass of Ethylene glycol= 13.5 g Number of moles of…

Q: What is the freezing point of a solution prepared by dissolving 63.49 g of glycerin (C3H3O3) in…

A: The freezing point of pure ethanol is -114.1˚C. The amount of glycerin added to 100 g of ethanol is…

Q: a reaction, 0.700g of Ca is added to 75.0mL of 1.0M HCl. Once the reaction is completed as…

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

Q: At 298 K Solution A has A = 0.60 atm. At 298 K Solution B has n = - 0.85 atm. Which solution has the…

A: Given: The osmotic pressure of solution A at 298 K = 0.60 atm The osmotic pressure of solution B at…

Q: 1. A solution was made from 32.6 g Na PO4 and 80.0 mL of H,O at 25 °C (molar mass = 163.94 g/mol;…

A: Mass of Na3PO4 (solute) =32.6 g Molar  mass of  Na3PO4 =163.94 g/mol Number of moles of Na3PO4 =…

Q: Question 16 Which of the following statements is TRUE? O None of the above statements is true. The…

A: Answer :-  The true statement is -  In general, the solubility of a gas in a water decreases with…

Q: What is the molality of 2.050 M Li3PO4 sp. gr. = 1.09

A: Molarity is define as the number of mole of solute dissolved per Liter of solution And molality is…

Q: 2. To what minimum temperature would a radiator be protected if equal volumes of ethylene glycol…

A: The density of ethylene glycol= 1.11 g/mLThe volume of ethylene glycol and water is considered to be…

Q: Mass percent of 2.13g of AgNO dissolved in 30.0 g of H2O

A: To find: Mass percent of 2.13g of AgNO dissolved in 30.0 g of H2O

Q: 2. Which solution below would have the lowest freezing point below? a) 0.75 M NaCI (aq) b) 0.15 M…

A: Depression in freezing point :         Depression in freezing point is directly proportional to the…

Q: At 25 °C and 785 Torr, carbon dioxide has a solubility of 0.0351 M in water. What is its solubility…

A: Given,the solubility of carbon dioxide at 25 0C and 785 Torr = 0.0351 Mthe solubility of carbon…

Q: Which of the following salta la most soluble? AKOH)3-Kgp = 19 109 BigS3-Kap = 16*1020 A22CO్; - Kgo…

A:

Q: (a) Explain the following:(i) Henry’s law about dissolution of a gas in a liquid.{ii) Boiling point…

A: Since your question has multiple parts, we will solve first question for you. If you want remaining…

Q: What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas…

A:

Q: a2 18. If 0.1 M H2SO4(aq.) solution shows freezing point -0.3906°C then what is the K₁₂ for H2SO4?…

A:

Q: What is the concentration of Xe(aq)

A:

Q: What would be the freezing point, in degree Celsius, of 3.8 m aqueous solution of Sc(ClO 4 )3? k f…

A: Molality of solution (m) = 3.8m Freezing point (Kf) = 1.86 C/m Freezing point (T) = ?

Q: 3. A 5.00 gram sample of lauryl alcohol is dissolved in 100 g of benzene (k,=5.10 °C/m). The normal…

A:

Q: A certain liquid X has a normal freezing point of 4.60 °C and a freezing point depression constant…

A:

Q: A solution was prepared by dissolving 6.34 g KCl.MgCl2.6H2O in sufficient water to give 2.00 L.…

A: The association of the specific number of water molecules to a compound is termed as the hydrates.…

Q: What is the freezing point and boiling point of an aqueous solution of LiCl that contains 2.58g of…

A: Given; Mass of LiCl = 2.58 g And volume of solvent i.e water = 10 mL Hence mass of solvent i.e water…

Q: The freezing point of a 0.100 M acetic acid (CH3COOH) solution is determined to be -0.1878 C.…

A: A numerical problem based on percent dissociation, which is to be accomplished.

Q: 100 90 80 NANO 70 CaCl Pb(NO,)2 60 50 40 KCI NaCi 30 20 10 KCIO, Ce,(SO,)g O 10 20 30 40 50 60 70 80…

A: The point where the solubility curve of NaCl and KCl will intersect each other, will represent the…

Q: In a study designed to prepare new gasoline-resistant coat-ings, a polymer chemist dissolves 6.053 g…

A:

Q: Expressed in moles per liter, which compound has the largest solubility in water? X (1) barium…

A: Compound having largest solubility = ?  --------------------------------------------------

Q: 4. On a clear day at sea level, the partial pressure of N₂ in air is 0.78 atm at 25 °C. Under these…

A: The objective of the question is to find the partial pressure of  when the concentration in water is…

Q: A solution of vinegar is What is the molality of acetic acid in vinegar which is 0.750 M in acetic…

A: Molality can be expressed as the number of moles of solute per kilograms of the solvent. i.e.…

Q: 1.826 g of an unknown substance dissolved in 28.640 g of glacial acetic acid (Kf =3.90 ⁰C/m) lowers…

A:

Q: The blood volume of a man is approximately 6.0 L. Blood cells take up about 55% of the volume, the…

A: Volume of blood = 6.0 LVolume taken up by blood cells = 55 % of total volume.Pressure at which the…

Q: The freezing point of lauric acid was lowered by 1.68°C when a 3.706 g sample of a nondissociating…

A: Solution- The freezing point depression (ΔTf) is given by the formula:  ΔTf = Kf × m × i where Kf is…

Q: At a certain temperature, 0.366 mol CH4 and 0.647 mol H2S are placed in a 4.00 L container.…

A:

Q: At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility…

A:

Q: The solubility of ethanol, CH 3 CH 2 OH, in water is greater than the solubility of propane, CH 3 CH…

A:

Q: A solution of ethanol, C₂H5OH, in water has a concentration of 4.246 mol L-¹. At 20.0 °C its density…

A: Information about the question

Q: Arrange the following compounds based in decreasing solubility in 5% HCl: NH N-CH3 O,N IV II The…

A: The solubility of given compound in 5% HCl is

Q: 11. On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N₂ in air is…

A:

Q: On a clear day at sea level, the partial pressure of N₂ in air is 0.78 atm at 25°C. Under these…

A:

Q: Assume that you have a semipermeable membrane installed in a beaker (show below). On the right side…

A: Osmosis is a physio-chemical process in which the movement of the water molecules (solvent…

Q: What is the solubility of ethane (in units of grams per liter) in water at 25 °C, when the C,H6 gas…

A: Given: The partial pressure of ethane over the solution, (P) = 0.442 atm. The henry's constant for…

Q: 8. The vapor pressure of pure water at 20.00°C is 17.50 torr Calculate the vapor pressure of the…

A:

Q: . Does the solubility of solids also depend on the structure of the solvent molecules? Why is that?

A:

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A:

Q: Consider the following substances: Lead (II) Carbonate, PbCO3 KSP = 7.40 x10-14 Magnesium Carbonate,…

A:

Q: To obtain a precipitate that is useful for gravimetric analysis, the analyst tries to establish…

A: Gravimetric method are quantitative methods that are based on determining the mass of  a pure…

Q: Review Topics] [References) Use the References to access important values if needed for this…

A: The objective of the question is to calculate-The percentage by mass of calcium acetate in the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.