An aqueous solution is 3.50% by mass hydrochloric acid, HCl. The mole fraction of hydrochloric acid in the solution is Answer: ____

Q: 3, A solution is formed by dissolving 73.0 g of urea, CO(NH2)2, in 300.0 mL of water at 25oC. What…

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Q: Relation between the volume of gas (2) that dissolves in a fixed volume of solvent (1) and the…

A: SOLUTION: Step 1: According to Henry’s law: “At a constant temperature, the amount of a given gas…

Q: An aqueous solution of 40% by mass ethylene glycol in H2O. What is the mole fraction of ethylene…

A: Assume the total mass of solution as 1kg.  In that consider ethylene glycol as 400 g (since 40% by…

Q: #1: Rubbing alcohol is sold over the counter as a topic (skin) antiseptic. Rubbing alcohol is…

A: The question is based on the concept of solutions. volume percentage is defined as the quantity of…

Q: A solution is made by mixing 15.g of water and 75. g of acetone ((CH3)2CO). Calculate the mole…

A: The mole fraction of water (Xwater) is calculated as follows:

Q: P Ideal = 414 Xv acetone=.962 Xvmethanol=1.745 The actual vapor pressure of the solution (161…

A: Raoult's Law: It states that , the partial pressure of each component of an ideal mixture is equal…

Q: An aqueous solution contains 43.4% glucose (C,H12O6) by mass. Part A Calculate mole fraction of…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: 6.80 g of sodium chloride are added to 2750 mL of water. Find the mole fraction of the sodium…

A: Mol fraction (x) = mol of solute / mol of solute + mol of solvent . Mol fraction  is also called…

Q: Calculate the mole fraction of the solution made by mixing 2.362 g of p-xylene (C8H10) and 165 g of…

A: Given, mass of p-xylene = 2.362g Mass of cyclohexane = 165 g

Q: The most useful conversion factor to convert between solution volume and moles is    mole ratio…

A: The most useful conversion factor to convert between solution volume and moles is  ?

Q: Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL,…

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Q: find the mole fraction of solute ( carbonic acid ) in a 1.13 M aqueous solution, with water as the…

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Q: A solution is made by mixing 50. g of acetone (CН), СО) and 25. g of methanol (CH,он). Calculate the…

A: Given :-  Amount of acetone = 50. g  Amount of methanol = 25. g  To be calculated :-  Mole fraction…

Q: 1. What is the mole fraction of 40% phenol(C6H6O) in benzene (C6H6)? 2. In a solution of naphthalene…

A: Answer: Mole fraction of a substance is the ratio of moles of that substance and total number of…

Q: culating mole fraction A solution is made by mixing 58. g of acetone ((CH,), CO) and 26. g of…

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Q: A solution is made by mixing equal masses of methanol, CH,O, and ethanol, C, H,0. Determine the mole…

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Q: One particular pungent gas is the toxic hydrogen sulphide (H2S). Hydrogen sulphide develops an odour…

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Q: Calculate the boiling point of an aqueous solution that is 15.0 percent by mass CsCl. Kb= 0.512°C/m…

A: Given the percent mass of aqueous solution of CsCl = 15.0 % w/w Boiling point elevation constant of…

Q: e mole fraction

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Q: The mole fraction of ammonium fluoride, NH4F, in an aqueous solution is 8.08×10-2 . The percent by…

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Q: O, at 35 °C and 4 bar.

A: Data given: Pressure of the oxygen gas (O2), P = 4 bar = 3.9476 atm (1 bar = 0.9869 atm)…

Q: What mass of celsium chloride must be added to 0.500L of water to produce a 0.40m solution? What are…

A: molality is number of moles of substance present in 1 Kg of solution molality = (weight (g)/molar…

Q: At a given temperature, you have a mixture of benzene [Pvap 745 torr) and toluene (Pvap = 290 torr).…

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Q: find the attached problem

A: Given: Concentration of the solute=1.0×10-4 M

Q: How to determine mole fraction? this is relating to finding the concentrationof sucrose in soda.…

A: Mole fraction is defined as the no. of mol of a particular component present in the total mol of…

Q: A solution was prepared by dissolving 120.0 g of KCl in 315 g of water. Calculate the mole fraction…

A: The mole fraction of the substance can be described as the ratio of moles of substance to the total…

Q: 1-Propanol (Pi = 20.9 Torr at 25 °C) and 2-propanol (P2 = 45.2 Torr at 25 °C) form ideal solutions…

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Q: find the initial mole fraction and initial mass % of the solute (sucrose)

A: Mole fraction of sucrose = number of moles of sucrose/total moles  Number of moles = mass/molar mass…

Q: 1. A solution of table sugar in water contains 5.25% by mass sucrose. Calculate : the mass of…

A: Given,  Mass percentage of sucrose in solution = 5.25%  Calculate  a). The mass of sucrose in 225 g…

Q: Bam makes a second solution, adding 6.64 g of Co(CH3COO)2 to 42.51 mL of H20. Calculate the…

A: Given: Mass of Co(CH3COO)2 = 6.64 g And volume of water = 42.51 mL. Mass of water = density X volume…

Q: A solution is made using 111.5 g dimethyl ether (molar mass = 46.07 g/mol) and 90.0 g of methanol…

A: Mole fraction describes the number of molecules (or moles) of one component divided by total the…

Q: 4. C3H, at NTP

A: Given :-  C2H2 at NTP (normal temperature and pressure)  To calculate :-  Density of C2H2

Q: A solution is made by mixing equal masses of methanol, CH,0, and ethanol, C,H,0. Determine the mole…

A: Mole fraction is defined as moles of that component divided by the total moles of each component in…

Q: A 1.35 m solution of NaOCl in water is prepared. What is the mole fraction of the NaOCl? Multiple…

A: Molality: No. of moles of a solute in 1kg of solvent is called as molality.

Q: Current Attempt in Progress The vapor pressure of water at 20 °C is 17.5 torr. A 27.7% solution of…

A: Given vapor pressure of water = 17.5 torr percentage of solute = 27.7℅

Q: What is the mole fraction of the solute in a 40% by mass ethanol (C2H6O) solution in water?

A: Given: concentration in %w/w = 40 ℅ Standard data: The molar mass of ethanol = 46.07 g/mol The…

Q: Freezing Point Depression: Molar Mass of a So Report Sheet Unknown solid number 942g 0.1949 2.94°C…

A: A numerical problem based on mole concept that is to be accomplished.

Q: 4 a)The mole fraction of iron(III) nitrate, Fe(NO3)3, in an aqueous solution is 6.42×10-2 . The…

A: The composition of a mixture can be expressed in different units like mole fraction, mass percent,…

Q: Describe how you would (carefully!) prepare 25.00 mL of an aqueous calicheamicin gamma-1 solution…

A: A mole of substance weighs its molar mass and contain avagadro number of particle 6.023*1023…

Q: C 18. A solution that is 33.6 % by mass of phenol (C&HSQH) in water is prepared. What is the mole…

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Q: The normal freezing point of a certain liquid X is 0.5 °C, but when 4.33 g of urea are dissolved in…

A: Colligative properties depend upon the concentration of solute particles. The molality of a solution…

Q: or advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O AS…

A: Entropy is defined as the degree of randomness or disorderliness  present in the sample. if a…

Q: A solution is made by mixing 55. g of acetyl bromide (CH,COBr) and 141. g of thiophene (C,H,S).…

A: Given:: Mass of CH3COBr = 55 g, MM=122.95 g mol-1 Mass of C4H4S=141 g, MM=84.14 g mol-1

Q: 4. Calculate the mole fraction of solute and solvent in a 30% aqueous sugar solution (C12H22011).…

A: Given,  Mass percent of C12H22O11 = 30%  Solute = C12H22O11  And  Solvent = H2O  Find the mole…

Q: initial mole fraction

A: Molar mass of NaCl=58.44 Molar mass of water=18g Mole fraction of each solute = Number of moles of…

Q: Example 9. A solution contains 25 per cent water, 25 per cent ethanol and 50 per cent acetic acid by…

A: Given: % by mass water=25%% by mass ethanol=25%% by mass acetic acid=50% To find: Mole fraction of…

Q: A solution was prepared by mixing benzene (C6 H6 ) and carbon tetrachloride (CCL4 ). Given that the…

A: Given that, Mole fraction of benzene= 0.0852 Moles of C6H6= 0.690 mol  Moles of CCl4= ?

Q: The normal freezing point of a certain liquid X is 5.20 °C, but when 41. g of urea (CH,N,O) are…

A: Given, mass of urea (CH4N2O) dissolved = 41.0 g Mass of liquid X = 750 g = 0.750 Kg Freezing point…

Q: A solution is made by mixing 141. g of water and 29. g of acetone ((CH,) CO). Calculate the mole…

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