The mole fraction of methanol in a solution that contains 16 g of methanol (32 g/mol) and 90 g of water (18 g/mol) is: O 0.9 О 009 О 01 O 0.5

Q: What is the concentration of arsine (in units of grams per liter) dissolved in water at 25° C, when…

A: Given : Partial pressure of Arsine = 0.701 atm  And K for Ar = 8.9 X 10-3 mol/L.atm

Q: What is the freezing point of a solution

A: ∆Tf = i×Kf×m  ∆Tf is the depression in freezing point  i is the Van't hoff factor  Kf is the molal…

Q: How many grams of sulfur (S8) must be dissolved in 100.0 g naphthalene (C10H8) to make a 0.13 m…

A: Given, the mass of solvent C10H8, msolvent = 100.0 g x 1 Kg/1000 g = 0.1 Kg The molality of the…

Q: Part A A solution composed of 55.0 g lithium iodide (Li) in 200 g of vater at 28.9 °C. What is the…

A: in the given question, we have to identify the mole fraction of LiI:- Given data,  50g of LiI 200G…

Q: For all items, observe the number of significant figures. 1) Determine the molar mass of an unknown…

A: Boiling point elevation is related to the molality of the solution by the following formula. Tb-Tbo…

Q: solution is made using 106.7 g of phenol (MM = 94.11 g/mol) and 70.0 g of acetone (MM = 58.08…

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Q: fu instructure.com/coz Question 15 What is the freezing point of a 2.8 m ethanol solution? For…

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Q: A solution is made using 65.1 g of hexane (MM = 86.18 g/mol) and 60.0 g of octane (MM = 114.2…

A: Given : Mass of hexane = 65.1g Mass of octane = 60g

Q: In a 71.0-g aqueous solution of methanol, CH,0, the mole fraction of methanol is 0.220. What is the…

A: Mass of Aqueous Methanol solution = 71 g Mole fraction of methanol = 0.220 Molar mass of methanol =…

Q: Below are animal cells placed in beakers of various cencentrations. Draw an arrow to show which way…

A: We are given 9 solutions with different concentrations of the cell as well as the solution.

Q: 14. Which of the following solutes, dissolved in 1.0 kg of water, creates a solution that boils at…

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Q: Which of the following 0.1 M aqueous solution will have the lowest freezing point?…

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Q: How many grams of NH3 must be dissolved in 100 g of water to create a saturated solution at 90°C

A: The solubility of a substances in a given solvent can be defined as the grams of the solute needed…

Q: 6) What is the percent by volume of a solution formed by aJded 15 L of acetone to 28 L of water? A.…

A: The volume of solute in milliliter present in 100 mL solution is known as the volume percent…

Q: Part A Use the data below to calculate the heat of hydration of sodium chloride. Compound Lattice…

A: The enthalpy of solution, , is  ∆solHthe sum of lattice energy and enthalpy of hydration, ∆hydH.…

Q: ty ol X2 yuS in water is 0.620 g/L when a pressure of X2 over the solution is 13.2 atm.. What is the…

A: Applying concept of henry law  C=kHP

Q: What is the mole fraction of ethanol in a solution containing 2.00 moles ethanol in 4.00 moles…

A: Given: Moles of ethanol = 2.00 moles Moles of water = 4.00 moles

Q: True or False Diluting the solution by adding more solvent changes the moles of the solute present.

A: Diluting the solution by adding more solvent changes the moles of solute present : True / False

Q: What is the freezing point of a solution formed by dissolving 8.775 g of NaCl in 1000.0 g of…

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Q: Part A A4.5 m aqueous solution of an ionic compound with the formula MX2 has a boiling point of…

A: van't Hoff factor provides us the result of effect of solute in a solution on its colligative…

Q: Assuming that the following aqueous solution has 0.1 M concentration, which will have the lowest…

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Q: Find out which of the following solutions has the lowest boiling point? O A. 0.20 M C2H6O2 OB.0 10 M…

A: Elevation of boiling point occurs when solute is added to pure solvent. This property of solution is…

Q: What is the molarity of a solution that has 41g NaCl in 2.5L solution?

A: Given information: Mass of NaCl = 41 g Volume of solution = 4.5 L

Q: What is the boiling point increase of an aqueous 1m NaCl solution? (Kb = 0.52 ◦C/m)? A. 1.56 ◦C B.…

A: Given: Kb value is 0.52 ◦C/m. The molality of NaCl solution is 1 m.

Q: What is the freezing point of an aqueous 2.00 m BaSO4 solution? (Kf = 1.86 °C/m) a, 0.0 °C O…

A: We will calculate freezing point of Solution

Q: Ethylene glycol and water are used in antifreeze (engine coolant).  What is the minimum mass of…

A: Solution - According to the question - Given values are - We know that, depression of freezing point…

Q: The boiling point of an aqueous solution is 101.12 ∘C. What is the freezing point?   Kb value: .512…

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Q: The Henry's law constant for O, is 1.3 x 10 Matm at 25 °C. Assuming ideal solution behavior, how…

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Q: What mass of ferric hydroxide is needed to prepare 500 ml of a 0.25n solution

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: Calculate the freezing point of solution given below. A solution is prepared by condensing 4.00 L of…

A: First, calculate the moles of gas using the ideal gas equation: PV=nRTn =PVRT=(720mmHg/760mmHg)×…

Q: 11. What is the mole percent of ethanol (C2H5OH) in 180 proof vodka, which consists of 71.0 g of…

A: Given, Ethanol =71.0 g Water = 10.0 g

Q: pressure (1)? NaCI Na,SO4 1.0 M 3.0 M Membrane Revell, Introductory Chemistry, 1e, © 2018 W. H.…

A: Hypertonic solution refers to solution which has higher osmotic pressure than another solution.

Q: What is the concentration of a solution, when 1.4 moles of MgOH are dissolved in 1200mL of H2O?

A: Given: The moles of magnesium hydroxide=1.4 mol Volume of solution =1200 mL Volume of solution=1200/…

Q: Which of the following results in a solution where the mole fraction of alcohol is 0.4? A. 0.4 mol…

A: The mole fraction of a solution determine the presence of the moles of the component in the total…

Q: What is the molarity of an aqueous solution of glucose (C6H12O6) 0,433 mol/kg? The density of the…

A:

Q: what is the percent of solution made by adding 40 mL of Methanol to 0.4 L of water ? * 100 % O 10 %…

A: Given, Volume of methanol = 40 mL Volume of water = 0.4 L = 0.4 × 1000 mL = 400 mL Percent of…

Q: How many grams of water are necessary to create a 15.0% (m/m) sodium bicarbonate (NaHCO3) solution…

A: The required mass of water to prepare 15.0 % m/m of NaHCO3 is determined by equation (1) where…

Q: Part A Which aqueous solution has the highest boiling point? O 1.25 M Ca(NO3)2 O 1.25 M KNO3 O 1.25…

A: When any non-volatile solute is added to pure solvent then its boiling point increases. this is…

Q: Concentrated hydrochloric acid contains 1.15 mol HCl dissolved in 3.54 mol H2O. What is the mole…

A: Given, Moles of HCl (solute) = 1.15 mol Moles of water (solvent) = 3.54 mol

Q: Which aqueous solution has the lowest freezing point? Circle one. 0.10 m Na2SO4 0.10 m KNO3 0.10…

A: Depression in freezing point:                                                  ∆Tf= iKfm where, ∆Tf=…

Q: What are the boiling point and freezing point temperatures of a 20% aqueous sucrose (C_HO)solution?…

A: The elevation in boiling point is directly proportional to the molality of the solute that is , ∆Tb…

Q: Water is a polar solvent which dissolves (i). and (ii) _compounds to form (ii) mixtures which are…

A: Fill in the blanks:

Q: What is the boiling point of a solution containing 1.50 g C9H8O4 in 75 grams CHCl3? (kb CHCl3 = 3.63…

A: Given,Solution containing 1.50 g C9H8O4 in 75 grams CHCl3kb CHCl3 = 3.63 oC/mTb= 61.7oCMolar mass of…

Q: If 90 grams of NaNO3 is completely dissolved at 10°C is the solution saturated, unsaturated or…

A: Given : Mass of NaNO3 dissolved = 90 g Since there is no mass of water given in the question. Hence…

Q: How many moles of C,H,O were dissolved into 91.340 g of ethylene glycol, if the freezing point of…

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Q: Which aqueous solution will have the lowest boiling point? Periodic Table and Datasheet O 0.1 m…

A: The elevation in boiling point of the solution can be given as follows: ∆T=i×Kb×m∆T=Boiling point…

Q: Calculate how much of a concentrated acetic acid solution (w 36%, p 1.0449 g %3D / ml) is required…

A: The solution is as follows :

Q: 12. Calculate the freezing point of an a nonionizing antifreeze solution containing 388g ethylene…

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Q: What is the mole fraction of water in a solution that contains 70.2 g of urea and 23.1 g of water?…

A: Given,  Mass of urea (solute) = 70.2 g  Mass of water (solvent) = 23.1 g  Molar mass of urea = 60.06…

Analytical Tools

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