A solution is prepared by dissolving NaBr in water. What is the mole fraction of NaBr in a solution that is 30% by mass NaBr? (Mw NaBr: 103 g/mol) (Mw water: 18.02 g/mol) 0.0698 Oa. Ob. 0.291 O. 0.0749 O d. 0.930 O e. 0.709

Q: Suppose you add 2.2 g of table salt (NaCI) and 3.4 g of potassium chloride (KCI), a table salt…

A: The molar mass of NaCl is  58.44g/mol The molar mass of KCl is 74.55g/mol The moalr mass of water =…

Q: 7. A 1.37 g/cm' solution is made up with two-thirds of its mass from water and the rest with solute…

A:

Q: What is the mole fraction of CH3CH2OH in an aqueous solution that is 31.9% CH3CH2OH by mass? thanks…

A:

Q: You have a solution which is 43.9% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A:

Q: A solution is made using 92 g of A(MM = 92 g/mol) and 80.0 g of B (MM = 40 g/mol). What is the mole…

A: We know that the mole fraction of B comes out to be xb=na/na+nb

Q: The solubility of potassium nitrate is 150. g/100g water at 70.0 degrees Celcius.  A solution is…

A: Solubility of KNO3 as 150 g/100 g of water at 70.0°C.

Q: solution is prepared by adding 40.00 g of lactose (milk sugar) to 110.0 g of water at 55degree…

A: According to the Raoult's law, the vapour pressure of solution is given by  Vapour pressure of…

Q: A solution is made by dissolving 6.26g NAOH in 25.2g water. 19. What is the number of moles of…

A:

Q: A solution is made by dissolving 46.8 g of glucose (M. wt = 180) in 117 g of water (M. Wt 18). The…

A: Answer: option a: 0.96 is the mole fraction of water.

Q: What mass of cesium bromide must be added to 0.500 L of water (d = 1.00 g/mL) to produce a 0.913 m…

A:

Q: A solution is made by mixing 54. g of heptane (C,H16) and 104. g of acetyl bromide (CH,COB1).…

A: The substance's mole fraction is equal to the ratio of moles of the given substance to the total…

Q: An aqueous solution is prepared by diluting 4.20 mL acetone (d = 0.789 g/mL) with water to a final…

A: Volume of acetone is 4.20 mL. Density of acetone is 0.789 g/mL. Density of solution is 0.993 g/mL.…

Q: A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL…

A: Number of moles of sulfuric acid = given mass / molar mass =17.75 g / 98.079 g/mole = 0.18 mole

Q: A solution is prepared by mixing 75 g of water, H;0 and 85 g of ethanol C,H;OH. Determine the mole…

A: Given: Mass of water, H2O = 75 g Mass of ethanol, C2H5OH = 85 g Molar mass of H2O = Atomic mass of H…

Q: The mass percent of THF (MM = 72.11 g/mol) in methylene chloride (MM = 84.93 g/mol) is 38.9%.  What…

A:

Q: What is the mole fraction of water in an aqueous solution (density = 1.20 g/mL) that is 2.5 m…

A: Density of aqueous solution = 1.20 g/mL Molality = 2.5m = number of moles/weight of solvent in kg…

Q: ) What is the mole fraction of HCl in a solution that is prepared by dissolving 25.5 g of HCl in…

A:

Q: A solution is made using 141.5 g of phenol (MM = 94.11 g/mol) and 70.0 g of acetone (MM = 58.08…

A: The mass of phenol = 141.5 g The mass of acetone is = 70.0 g The molar mass of phenol is = 94.11…

Q: 5) what is the mole fraction, Xof methanol in aqueous solution that is 20.0% (m/m) methanol (32.0…

A: a. Mass percentage of methanol (m/m) % = 20.0 % Mass percentage of methanol (m/m) % = mass of…

Q: You have a solution which is 47.8% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

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Q: The mole fraction of methanol in a solution that contains 16 g of methanol (32 g/mol) and 90 g of…

A: "Since there are multiple subparts, we will answer only the first three subparts. If you require the…

Q: An aqueous solution is 22.0 % by mass silver nitrate, AGNO3, and has a density of 1.22 g/mL. The…

A: The relative quantities of substances present in a mixture is determined using mole fraction, the…

Q: C2H6 O2 40.0g He 4. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 %…

A:

Q: The mass percent of decane (MM=142.29 g/mol) in benzene (MM=78.11 g/mol) is 42.23%. What is the mole…

A: Mass percent of decane = 42.23%  If mass of decane = 42.23 g then mass of mixture = 100 g and mass…

Q: You have a solution which is 44.3% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Mole fraction is given by mole of one solute divided by sum of number of moles of solute and…

Q: You have a solution which is 45.7% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Mass percent of isopropyl alcohol is 45.7%. So, 45.7 g of isopropyl alcohol is present in 100 g of…

Q: A solution is made using 141.3 g of phenol (MM = 94.11 g/mol) and 70.0 g of acetone (MM = 58.08…

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Q: C3⁢H6O) to create a solution where the mole fraction of chloroform, ?chloroform,χchloroform, is…

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Q: 10.0 mL of ethanol (p = 0.789 g/mL, 46 g/mol) was added to 90.0 mL of water (p = 1 g/mL, 18 g/mol)…

A:

Q: The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036…

A: Since the mass of component = mass of sample X mole fraction of sample  Hence mas of oxygen  = mole…

Q: solution is made using 179.1 g of water (MM = 18.02 g/mol) and 120.0 g of ethanol (MM = 46.07…

A:

Q: What is the mole fraction of LiCl in solution that is 9.0% by mass LiCl and has a density of 1.00…

A: Given information,       Mass % of solute is 9% and its density is 1.00 g/mL. The mass of LiCl is 9…

Q: What is the mole fraction of NazSO4 (Molar mass = 142 g/mol) in an aqueous solution which is 11.5%…

A: Mole fraction is the ratio of moles of a particular element to the total moles present. mole…

Q: PN2 equals 593 torr and Poz equals 159 torr? At 1.00 atm pressure, the solubility of pure oxygen in…

A:

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

A: Let both are taken 1 gm  Molecular weight of CH4O = 12+4+16 = 32 gm/mol and C2H6O = 24+6+16 = 46…

Q: A solution is prepared by mixing 2.18 mol C-H16, 3.73 mol C3H18, and 4.56 mol C9H20. What is the…

A: No.of mole of C7H16 = 2.18 mol No.of mole of C8H18 = 3.73 mol No.of mole of C9H20 = 4.56 mol Mole…

Q: An aqueous solution is 6.00 % by mass ethanol, CH3CH2OH, and has a density of 0.988 g/mL. The mole…

A: Given :- %w/w of ethanol solution = 6.00 %  Density = 0.988 g/mL  To calculate :-  Mole fraction of…

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: An aqueous solution of CaCl2 weighs 6.6 kg. The solution has 7.5 moles of CaCl2 present in it. The…

A: Given: An aqueous solution of CaCl2 weighs 6.6 kg. The solution has 7.5 moles of CaCl2 present in…

Q: MOLE FRACTION AND DILUTION What is the mole fraction of solute and solvent in a solution prepared…

A: Mole fraction of any component is given by the following equation: Mole fraction=number of moles of…

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

A: The solution is made by mixing benzene and carbon tetrachloride together. The mole fraction of…

Q: A solution is made using 119.3 g of toluene (MM = 92.13 g/mol) and 80.0 g of benzene (MM = 78.11…

A:

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: 15. A solution that is 33.6 % by mass of phenol (CH OH) in water is prepared. What is the mole…

A: Given, Mass by percentage of phenol 33.6%

Q: If potassium nitrate (KNO3; FW 101.1 amu) was combined with a known volume of cyclohexane (C6H12; FW…

A: Colligative properties of solutions are those properties which depend on the amount of solute added…

Q: [References] The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments…

A: Given : Total mass = 8.58g Mole fraction of O2 = 0.036  Mole fraction of N2 = 0.056  Mole fraction…

Q: A sample of commercial correct trated Hcl is 11.8mHcl and has adensity of 1.190g/mol calculate mass…

A: Molarity of solution is the ratio of the mass of solute in solution to the molar mass of the solute.…

Q: solution was prepared by dissolving 200.0 g of KClKCl in 285 g of water.   Calculate the mole…

A: Given ⇒ mass of KCL=200 gMolar mass of KCL=74.6 gmolmass of water=285 gmmolar mass of H2O=18mole…

Q: A solution is made by dissolving 46.8 g of sucrose (M. wt = 342) in 117 g of water (M. wt 18). The…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The freezing point of a 1 liter aqueous solution containing 10g of an unknown solute is -0.1 °C.…

A: We know that  ∆Tf = kf ×m×i

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.