The Kf value of acetic acid is 3.90 oC/ mol/L, and it's freezing point is -2.3 oC. How many grams of Li2S would you need to be add to a 98 mL sample of acetic acid in order to lower the freezing point to -8.1 oC?

Q: 10 A 3.40-g sample of a mixture of naphthalene (C, H.) and pyrene (CH) is dissolved in 35.0 g…

A: Given: The mass of the mixture of naphthalene and pyrene = 3.40 g The mass of benzene (solvent) =…

Q: How many grams of the non-electrolyte C3H8O3 must be dissolved in 616g of water to produce a…

A: Given data,Mass of water=616g=0.616KgFreezing point of solution=-1oC

Q: What is the percent by volume of isopropyl alcohol in a solution that contains 23 mL of isopropyl…

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Q: Which of the following aqueous solutions would give rise to a greater osmotic pressure? a)  18.00 g…

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Q: Potassium nitrate has a lattice energy of – 163.8 kcal/mol and a heat of hydration of -155.5…

A: To solve the question, we need to convert the energy from kcal to kJ.  ∆Hlattice=-163.8 kcal1…

Q: An aqueous solution containing 15.1 g of an unknown molecular (nonelectrolyte) compound in 108.5 g…

A: Given: The mass of an unknown compound and the mass of water is 15.1 g and 108.5 g, respectively.…

Q: 10. What volume of 12 M HCI is required to prepare 6.00 L of a 0.300 M solution? 11. What is the…

A: Formula used :- 10. M1V1 = M2V2 11. Molality = number of moles of solute/mass of solvent (in Kg)

Q: A solution contains 20.0% (by mass) of ammonium sulfate, (NH4)2SO4, andhas density of 1.12g/mL. (a)…

A: Molarity is defined as the number of moles of the solute divided by the volume of the solution in…

Q: solution

A: We will calculate Tf

Q: A 13.1 g sample of a new chemical is dissolved in 102.4 g of H20. The freezing point of the…

A: The difference between freezing point of Pure solvent and it's solution is called depression in…

Q: The normal freezing point of water is 0.00 ⁰C.  What is the freezing point of a solution containing…

A: The magnitude of the freezing point depression produced by a solute is found to be proportional to…

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

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: What is the freezing point and boiling point for a 1.5 m solution of  sucrose in water?

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

Q: Water softeners often replace calcium ions in hard water withsodium ions. Because sodium compounds…

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Q: A small cube of lithium (density = 0.535 g/cm3) measuring1.0 mm on each edge is added to 0.500 L of…

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Q: NWhat mass of water is necessary to prepare the following solution? 180.0 g of a 2.500 % sugar…

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Q: When ammonium chloride (NH4Cl) is dissolved in water, the solution becomes colder.a. Is the…

A:

Q: A solution contains 30 mLs of ethanol and 40 mLs of water the denisty of water is 0.789 the denisty…

A: Given :  Volume of water = 40 mL  Volume of ethanol = 30 mL  Density of water = 1g/mL  Density of…

Q: Which aqueous solution has the higher boiling point?  0.01 m  CaBr2 or 0.1 m NaCl? Why?

A: Given values -> 0.01m CaBr2 0.1m NaCl

Q: Calculate approximately how much methanol , CH3OH, would be needed for an automobile radiator…

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Q: Commericial concentrated Hydrochloric acid is 11.8 M HCl and has a density of 1.190 g/mL. Calculate…

A: Given Concentration , Molarity (M) = 11.8 mol/L It means 11.8 moles of solute ( HCl ) present in 1 L…

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

A: The freezing point of a substance is the temperature at which there exists an equlibrium between its…

Q: at what temperature will a solution that is composed of 0.73 moles of glucose in 650mL of water…

A: Elevation in boiling point: ∆Tb = i×kb×mTb-Tb° =i×kb×moles of solutemass of solvent (in kg)…

Q: The freezing point of water, H,0, is 0.000 °C at 1 atmosphere. KAwater) = 1.86 °C/m In a laboratory…

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Q: Which solution has the lower freezing point? 11 g of CH3OH in 100 g of H2O   or    50 g of CH3CH2OH…

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Q: Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5…

A:

Q: 14. How many grams of potassium hydroxide are needed to make 600.0mL of 0.450M potassium hydroxide…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 2. Combustion of 1.70 g of the compound that has carbon, oxygen and hydrogen yields 1.854 g CO, and…

A: Given, Mass of compound = 1.70 g Mass of CO2 = 1.854 g Mass of H2O = 0.153 g

Q: The solubility of a compound is 84 g per 100.0 g solvent at 25 °C. If 84 g of the compound is…

A:

Q: A compound of carbon, hydrogen, and oxygen was burned in oxygen, and 1.000 g of the compound…

A: Given, Mass of compound = 0.1107g. Mass of water = 25.0g = 0.025kg. Freezing point of solution =…

Q: What is the freezing point of a solution that is made by dissolving 36.8 grams of potassium…

A: Moles of solute (KOH) = mass/molar mass = 36.8g/(56.1g/mol) = 0.656 moles Mass of solvent(water) =…

Q: What is the lowest temperature that is needed to completely dissolve 1000 g of sodium hydroxide in 1…

A: Solubility of a substance is defined as the minimum amount of a substance which can be dissolved in…

Q: How many grams of ethylene glycol (C2H6O2 = 62.07 g/mol) must be dissolved in 1000.0 grams of water…

A: Concept:  Upon adding some electrolyte there occurs the depression in freezing point as the surface…

Q: Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of…

A: DISSOCIATION: In chemistry, when a chemical compound is cleaved into its smaller constituents is…

Q: Which aqueous solution will have the lowest freezing point? ATf = Kf m i a. 0.05 m MgCl2 b. 0.05 m…

A: Depression in freezing point is given by:

Q: 12.58 grams potassium hydroxide dissolved in 100 mL ethanol. Give the molarity and molality.

A: Molarity of a solution can be defined as the number of moles of solute dissolved per litre of…

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

A:

Q: When lithium iodide (LiI) is dissolved in water, the solution becomes hotter.a. Is the dissolution…

A: When heat is released during a reaction, that process is called exothermic. If the heat is used…

Q: If 11.2 g of sugar (MM= 342 g/mol) is dissolved in 500 g water at 30 degrees celsiui, a.) what is…

A: Given: Mass of sugar= 11.2g Molar mass of the sugar= 342 g/mol Mass of water= 500g Temperature =…

Q: b. When 4.35 grams of ethylene glycol (C,H,O2) is dissolved in 100g of water, the resulting solution…

A: Given,  Mass of ethylene glycol (solute) = 4.35 g  Mass of water ( solvent )             = 100 g =…

Q: The freezing point of a 0.10 m solution of mercury(I) nitrate is approximately -0.27 celsius…

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Q: 150 mmol/L of the following substances are dissolved in pure water. Which would have the highest…

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Q: WHEN 36G OF A NONVOLATILE, MOLECULAR SUBSTANCE IS DISSOLVED IN 100G OF WATER, THE SOLUTION BEGINS TO…

A: Given information: Mass of non-volatile = 36 g Mass of water = 100 g Freezing point of solution =…

Q: When 86 g of a nonelectrolyte compound are dissolved in exactly 76 g of water, the solution has a…

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Q: Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of…

A: Given : Freezing point of solution = -14.5 ⁰C  Volume of solvent = 275 ml  Kf = 1.86 ⁰C kg mol-1

Q: The Henry's law constant for helium gas in water at 30 degrees C is 3.7 x 10^-4 M/atm and the…

A: Henry’s law constant(k) of He is 3.7×10-4 M/atm. Solubility of He can be determined using Henry’s…

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.