A The balf-life of barium-131 is 12 days. How many grams remains after 60 days if the initial sample had a mass of 10 g?

Q: 1. A solution is made by mixing 3.40 g of tea in 76.0 g of water. What is the mass percent of tea in…

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Q: Molality is moles of solute divided by kilograms of solvent. As the fudge was heated, there was…

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Q: II. Freezing point of a pure solid. Data Table. 1. mass of pure naphthalene o l seode os 9.579g…

A: Mass of pure napthalene = M = 9.579 g = 9.579 * 10-3 kgFreezing Point of napthalene = TN = 78.6…

Q: Write Short paragraph about heterogeneous coloidal solution.

A: A colloid is a heterogeneous mixture in which dispersed particles have an intermediate size of…

Q: Molality (m) is defined as moles of solute per _____ of _____.     kg; solution     L; solution…

A: There are various concentration terms for solution :-  Molarity  Normality  Mole fraction  %w/w…

Q: Draw the structure of benzoyl peroxide and show how benzoyl peroxide decomposes to form two radicals…

A: In the given question we have to draw the structure of the benzoyl peroxide and the two radicals…

Q: calculate kb of the solvent given the normal point of the 3.6m solution is 65.6 degree celsius. The…

A: Given: The normal boiling point of solvent is 52.1 degree Celsius. Molality, ‘m’ = 3.6m

Q: densidy A sample of a liquid soluent of o.415 almL. what 1s the mass of 85.5mL of the liqui d? has a

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Q: Table 2. Freezing Point Depression Calculations Molality (m) van't Hoff factor, i Theoretical f.p.…

A: Molality is defined as the number of moles of solute present in 1 kg of solvent. Number of moles of…

Q: Determine the boiling point of a solution consisting of 125 mg of cinnamaldihyde dissolved in 1.10 g…

A: When a solute is added to a solvent then it will  result in elevation in boiling point. As boiling…

Q: Find the weight percent and mole fraction of NaI if the molality is 0.750 m. The solvent is water.

A: The molality of NaI is = 0.750 m The solvent is water = water The weight percent of naI =? The mole…

Q: The solubility of solid or liquid solutes generally choose your answer... choose your answer... A…

A: The temperature effects the solubility of solid, liquid and gas.

Q: A solution made of toluene and benzene is prepared with a mole fraction of 0.7 for toluene. If the…

A: Dear student, As you have asked multiple question but according to guidelines we will solve first…

Q: what is the density of carbon tetrahydride at 685 torr and 65°c

A: Given ,Molecule = Carbon tetrahydride Pressure = 685 torrTemperature , T

Q: mole

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Q: when a nonvolatile solute is added to a volitile solut, the solution vapor pressure ________ the…

A: colligative properties are those properties of solutions that depend on the ratio of the number of…

Q: An aqueous solution contains 6.89% phenylalanine () by mass. Assume the phenylalanine is nonionic…

A: we have to apply the formula for elevation in boiling point, depression in freezing point and…

Q: A common colligative property is that a solute will...   Raise the boiling point   none of these…

A: Colligative properties: Properties of solutions are properties that depend upon the concentration of…

Q: A student prepared a sugar solution containing 7.5345g of sugar ol) in 25.00mL of water and…

A: The objective of the question is to calculate the freezing point depression constant using the…

Q: The experimental data in the table was collected during a freezing point depression study where BHT…

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Q: 30. Vapor pressure is a property of the solvent O A.physical B.chemical O c.dynamic D.kinetic 27.…

A: ∆Tb = i × m × Kb ∆Tb = boiling point elevation i = vant Hoff factor   For Sucrose, i = 1 ( as…

Q: Which of the following are measures of the concentration of solution? a) molality b) mass percent…

A: Molality = It is defined as moles of solute per kg of solvent.

Q: Unrounded Rounded Zone average molarity of 0.01366 KMN04 solution (M) Percent deviation of your…

A: While rounding off, we need to round off to least number of significant digits required.