Calculate the mole fraction of urea (MW = 60) in a solution prepared by dissolving 16 g of urea in 39 g of H2O. Group of answer choices 0.58 0.11 0.37 0.14

Q: if kf for water is 1.86°C/m, what is the freezing point of an aqueous solution of Sodium chloride…

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Q: A solution contains 0.155 moles of CO2, 2.00 moles of H2O, and 0.130 moles of H2. What is the mole…

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Q: How do you make a 10x stock solution for 10mM NaH2PO4 (monobasics). Show what should be the volume…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: Calculate the number of ml of 3.5 M (NH4)2CO3 solution necessary to provide 12.5 g. of (NH4)2CO3? 2.…

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Q: Because zinc has nearly the same atomic radius as copper(d=8.95 g/cm³), zinc atoms substitute for…

A: It is the fixed distance between the nuclei of two bonded atoms (like atoms or unlike).

Q: calculate the mole fraction of nacl in a solution prepared by dissolving 117 g nacl in 3.45 kg H20

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Q: Calculate the mass of a 25.0 wt% KOH solution required to make 525.0 mL of 0.285 M KOH. mass: g

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Q: How To Prepare 100 ML Of A 0.08 N Potassium Acid Phthalate (KHC8H4O4) Solution.

A: Detail mathematical calculation is shown below

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: w many grams of glycerine, C3H5(OH) (MM = 92 g/mol) is mixed with 36 g H₂O to make a solution where…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: Which of the following statements is true about the boiling point of a solution containing a…

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Q: Grams of solute per 100 g H₂O 1. 2. 3. 150 140 130 4. 120 110 100 90 80 70 60 50 40 30 20 10 x KI…

A: Solubility curve: Solubility curve represents solubility of a substance per 100gm of water with…

Q: What will be the percent composition by mass of a solution made by dissolving 28.4 grams of sodium…

A: Given mass of sodium acetate is 28.4 grams. Volume of water is given as 125 mL.  As the density of…

Q: What is the boiling point, in °C,

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Q: Caffeine (Cy H10N402) is a stimulant found in coffee and tea. A solution of caffeine in the solvent…

A: PART A: Given  Concentration = 0.0520 m = 0.0520 mol/kg It means 0.0520 moles of solute (caffeine)…

Q: What are the mole fraction and the mass percent of a solu-tion made by dissolving 0.30 g of KI in…

A: Substitute 0.4 L as volume and I g/mL as the density of water in the expression of density to…

Q: A solution is made by dissolving 0.900g of compound Y into 11.000g of cyclohexane. The solution…

A: Please find the attached sheet.

Q: Calculate the number of moles of H2O2H2O2 in 450ml of a 35% H2O2H2O2 solution. Molar mass of H2O2=…

A: Given solution’s molarity is manipulated or calculated through the use of given volume value and…

Q: What is the percent-by-mass concentration of KOH in a solution that is prepared by adding 18.0 g of…

A: Given, Mass of solute=18g Mass of solvent =95g Mass of solution= mass of solute+ Mass of solvent…

Q: A 1.37 M solution of an acid with the formula C6H₂O7 has a density of 1.10 g/ml. Calculate the mass…

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Q: A solution contains 0.150 moles of NH3,1.10 moles of H2O, and 2.30 moles of NaOH. What is the mole…

A: Given :  number of moles of NH3 = 0.150 mol  number of moles of H2O = 1.10 mol  number of moles of…

Q: Solution Volume of Solute Mass of Solute Volume of Water (if liquid) to be Added A. 5% by volume,…

A: Concentration of a solute can be expressed in terms of volume by volume percentage. Write the…

Q: Calculate the osmotic pressure of a 10 m/v% aqueous hemoglobin solution at 20 °C, if its molar mass…

A: The extra pressure that has to be applied on the solution side in order to prevent the flow of…

Q: Concentrated ammonia contains 1.10 mil of NH3 dissolved in 2.54 mol H2O. What is the mole fraction…

A: · Number of moles of NH3 in concentrated aqueous ammonia = 1.10 mol· Number of moles of H2O in…

Q: tion 8 When carbonating fruit, the initial partial pressure of CO2 is 6.56 x 104 atm, resulting in a…

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Q: What is the mole fraction of solute in a 3.12 m aqueous solution? Xsolute = x10 TOOLS

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Q: What are the boiling point and freezing point of a 1.47 m solution of naphthalene in benzene? (The…

A: The boiling point of a solvent can increase when we add my non-volatile solute to it. It is called…

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: What is the mole fraction of solute in a 3.69 m aqueous solution? Xsolute = x10 TOOLS

A: Answer:-This question is answered by using the simple concept of calculation of mole fraction using…

Q: Which of the following aqueous solutions of Na2SO4 is hypertonic with respect to a 0.15 M NaCl…

A: Hypertonic solution: A solution having higher osmotic pressure than the other is called hypertonic…

Q: A solution is made by dissolving 2.5 mg sodium fluoride (NaF) in 2.5 L of water at 20.0°C. What is…

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Q: The mole fraction of Mgl2 of the solution in Part A is 1.59x10-2. Calculate the expected vapour…

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Q: 7.What volume (in ml) of a solution that is 23% in glucose(C6H12O6) by mass contains 162.5g of…

A: Given data, 23% glucose solution by mass Density of solution is (d) 1.03 g/ml

Q: prepare a 10% 100mL of NaCl solution.

A: It is not mentioned that should we have to prepare 10% m/v solution or 10% w/w solution. so, let us…

Q: Determine the mass percent composition of a solution made by dissolving 55.6 g of KF in 898 g of…

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Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A: Given,i. mole fraction of magnesium chloride =0.0700.ii. Mass of sodium hydroxide =7.00 g mass of…