The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. KAethanol) = 1.99 °C/m In a laboratory experiment, students synthesized a new compound and found that when 12.60 grams of the compound were dissolved in 265.8 grams of ethanol, the solution began to freeze at -117.627 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g'mol

Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC.  In a laboratory experiment,…

A: The freeing point depression is observed on the addition of solute in a solvent, which is a…

Q: Vitamin D is one of the lipid soluble vitamins. When 1.50 g of vitamin D is dissolved in 20.0 g of…

A: A solution is formed by homogenous mixing of solute and solvent. The properties of solution that are…

Q: 13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?…

A: Molality (m) : Number of moles of solute (n) present in 1Kg of solvent (W) is called molality (m)…

Q: Eicosene is a molecular compound and nonelectrolyte with the empirical formula CH2. The freezing…

A: Given that:  Depression in freezing point is 1.75°C  Kf for benzene is 4.90°C/m  Mass of eicosene…

Q: When a 5.64 g sample of a non-electrolyte was dissolved in 40.0 g of water, the freezing point of…

A: Molality of the solution can be calculated as follows:

Q: 14. Certain compounds are known to “dimerize” in solution – this means that the intermolecular…

A: The depression in freezing point is given by  ΔTf = i * Kf * molality where ΔTf = depression in…

Q: When 904. mg of a certain molecular compound X are dissolved in 60.0 g of benzonitrile (CHCN), the…

A:

Q: 29 g of KOH is dissolved in 250. mL of water. What is the mass percent of KOH in this solution?…

A: Hence you posted multiple choice questions, I will answer the first three sub questions. (1) mass of…

Q: At 25 °C the solubility of NaCl is 36.0g/100gH2O . How much NaCl can dissolve in 325 g of water?

A: Givan data: The solubility of NaCl is 36.0 g in 100 g of H2O. To find: The mass of NaCl that can be…

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 258.0 mg…

A: Here the solvent is cyclohexane whose Kf value is 20.0 oC/m, and the solute is the unknown…

Q: The boiling point of ethanol, CH3CH,OH, is 78.500 °C at 1 atmosphere. K,(ethanol) = 1.22 °C/m In a…

A: When a non-volatile substance is added into the solution ,boiling point of solution increases This…

Q: A solution of 5.00 g acetic acid in 100 g benzene freezes at 3.38C. A solution of 5.00 g acetic acid…

A:

Q: The vapor pressure of benzene, C6H6, is 94.6 Torr at 25 °C. A nonvolatile compound was added to…

A:

Q: A chemistry student weighs out 0.350 kg of an unknown solid compound X and adds it to 700. mL of…

A:

Q: the initial freezing temperature of 0.57 kg of a pure solvent at 4 degrees C in15.0 grams of a…

A: Freezing point of solvent is greater than freezing point of solutions

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/m In a…

A:

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: Suppose that you add 25.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

A:

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. Kgethanol) = 1.99 °C/m In a…

A: Given: The freezing point of pure ethanol is -117.300°C. The freezing point depression constant of…

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 148.6 mg…

A: Given,  Normal freezing point of cyclohexane = T0f = 6.50 °C Mass of unknown nonelectrolyte (solute)…

Q: The treezing point of ethanol (C2H5OH) is -114.6 °C. The molal freezing point depression constant…

A: In this question, we want to determine the freezing point of the Solution.  How we can determine,…

Q: 10.0 g of an organic substance is dissolved in 80.0 g of benzene. The freezing point of the solution…

A: Mass of benzene = 80.0 g = 0.080 Kg mass of organic solute = 10.0 g Freezing point of this solution=…

Q: 16. Consider two statements and state whether they are true or false: (1) If the enthalpy of…

A: Solvation depends on the solvation energy i.e. the change in Gibbs free energy, which expressed as…

Q: The boiling point of benzene, C6H6, is 80.100 °C at 1 atmosphere. Kb(benzene) = 2.53 °C/m In a…

A: Boling Point = 80.100oC Kb = 2.53 °Cm-1 Mass of new compound = 11.92 Mass of benzene used = 243.9g =…

Q: When 6.66 g of a certain molecular compound X are dissolved in 60. g of benzonitrile (CH₂CN), the…

A:

Q: When 1.504 g of a solute is dissolved in 5.012 g of solvent (benzene), the solution freezes at -7.05…

A: Given: Mass of solute = 1.504 g Mass of solvent (Benzene) =5.012 g Freezing point of the solution…

Q: 5.152g of Na2CO3(s) is added to 75.0mL of water at 21.20°C. When the dissolution is complete, the…

A: Molarity of the solution can be calculated by using Following formula - Molarity = mass×1000/molar…

Q: Suppose 0.125 g of a protein is dissolved in 10.0 cm3 of ethyl alcohol (C2H5OH), whose density at…

A: Biomolecules plays an important role in human body. Their molecular mass is determined by use of…

Q: When you open a bottle of a carbonated beverage, bubbles of carbon dioxide gas escape from the…

A: Henry’s Law:Henry's Law explains the solubility of gas in a liquid solution. It states that the…

Q: A solution of a non-electrolyte is made by dissolving 12.15 moles of solute in 1.280 kg of water.…

A: We will first calculate molality of solution , then using it find freezing point of solution.

Q: Antifreeze is composed mainly of ethylene glycol (C2H6O2, d = 1.11 g/cm3). It is added to a car…

A: The relationship between depression in freezing point (∆Tf) and molality of solition is  ∆f = kf ×…

Q: The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory…

A:

Q: At 50°C, the solubility of KCL in water is 42.6 g in 100 g water. What is the molality of KCL in…

A: Here we are required to find the molality of KCl solution

Q: What mass of glycerin (C3 Hg O3), a nonelectrolyte, must be dissolved in 200.0 g water to give a…

A: Given: Freezing point depression (f) = 0 -(-4.20) = 4.200C Molar mass of glycerine (M2) = 92.094…

Q: A general chemistry student isolated ciguatera toxin (a poisonous polyether produced by the…

A: Given,mass of ciguatera toxin = 192.9 mgmass of cyclohexane ( C6H12 ) = 3.397 gFreezing point of…

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: The boiling point of ethanol, CH3CH2OH, is 78.500 °C at 1 atmosphere. Kp(ethanol) = 1.22 °C/m In a…

A:

Q: Ionic Compounds... Dissociate to Dissolve hmg! ion-ion .... ..... .. ion-dipole NaCI(aq) has no H20…

A: The dissociation of the given compound is as follows, (NH4)3PO4(s) ---> NH4+(aq) + PO43-(aq)

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

A:

Q: When 1.504 g of solte is dissolved in 5.012 g of solvent (benzene), the solution freezes at -7.05 C.…

A:

Q: An aqueous solution is 20.0% by mass of sodium thiosulfate pentahydrate, Na, S2 O3-5H2O. What is the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: The freezing point of ethanol (C,H,OH) is -114.6 °C. The molal freezing point depression constant…

A: Calculate the moles of glycerin,

Q: study is the effect on osmotic pressure. (A) When 0.517 g of the compound are dissolved in enough…

A: Mass of compound = 0.517 gVolume of solution= 50 mL Osmotic Pressure= 4.18 atm Temperature= 23 °C We…

Q: 1. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: Your favorite household cleaner is a 30% aqueous solution of ammonia (NH3) by volume. The typical…

A: M = (1000 ×w)/(MM × V)Where, M = molarity; w = mass of NH3 in g; MM = molar mass of NH3; V = volume…

Q: An aqueous solution containing 5.00 g of catalase, an enzyme found in the liver, in 100. mL of…

A: Given, Mass of catalase = 5.00 g  Volume = 100 mL  Osmotic pressure = π = 3.72 torr  Temperature = T…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

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.