Caffeine is a stimulant found in tea and coffee. A sample of Caffeine was dissolved in 45.0 g of Chloroform CHCl3, to give a 0.0946 m solution. How many grams of caffeine were in the sample? (Molar mass of Caffeine = 194.2 g/mol, Molar mass of Chloroform = 119.4 g/mol)

Q: Lead azide, Pb3(N3)3 has been used as a detonator in automobile airbags. A saturated solution of…

A: Since you have posted multiple questions, we will provide the solution only for the first question…

Q: Determine the percent by mass of MgCl2 if 3.3 g of MgCl2 is dissolved in 46.5 g of water.

A: Given, mass of MgCl2 = 3.3 g Mass of Water = 46.5 g Total mass of Solution = mass of water + mass of…

Q: 4 An 18.3 g of an unknown non-ionizing solute is added to 88.8 g of water. If the boiling point of…

A:

Q: What is the mass percent NaCl when 30.3 grams of sodium chloride are dissolved in 127.2 grams of…

A: The objective of this question is to calculate the mass percent of sodium chloride (NaCl) in a…

Q: 3.21 g of potassium chloride dissolved in 30.2 g of water Percent by mass = % KCI 3.21 g of…

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Q: 132 g of 0.445 m KCl Express your answer using three significant figures. msolute = VE ΑΣΦ Submit…

A: mass of solution = 132 gmolality = 0.445 mmass of KCl =?

Q: What is the mass % of propylene glycol in a 2.77 M solution of propylene glycol (MM = 76.09 g/mol)…

A: Mass percent shows the mass of solute present during a given mass of solution.  Mass percent is…

Q: 3) Calculate the molality of a solution prepared by dissolving 19.9 g of KCI in 750.0 mL of water.…

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

Q: An aqueous solution is1.983% by mass of sodium sulfite pentahydrate, Na2SO3∙5H2O. What is the…

A: Molarity is defined as the number of moles present in 1 liter of solution. It is given as: Molarity…

Q: A metal alloy is made up of elements X and Y. The mass of a sample of the metal is 15.3 g. Metal X…

A: The given data: The mass of the metal alloy = 15.3 g The mass of the metal X = 4.1 g To determine =…

Q: What volume of barium chloride, BaCl2 is needed to make a 2.5 M barium chloride solution with 0.25…

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Q: What is the molality of a solution made by combining 2.3266 g sodium hydroxide, NaOH, with 0.3400 L…

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Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 2.57 m and a density of 1.25…

A: Molarity :-  The number of moles of solute dissolved in one litre of solution is defined as molarity…

Q: 0.4 mL of a solute is dissolved in 99.6 mL of solvent. What is the ratio and concentration in %v/v?

A: Volume of solute = 0.4 mL  Volume of solvent = 99.6 mL  Volume of solution = solvent + solute…

Q: calculate the mass of QCl2 that can be dissolved in 873.3 mL of solution. The molar mass QCl2 is…

A: The number of moles of a substance is determined as the mass of substance given upon its molar mass.…

Q: A solution of aqueous substance(molar mass 90.8g/mol) has a molarity of 2.1M and density of…

A: Given   The molarity is 2.1 M. The molar mass of substance is 90.8 g/mol The density is 1.08 g/mL

Q: Determine the percent by mass of MgCl2 if 3.4 g of MgCl2 is dissolved in 41.6 g of water.

A: Percent by mass: mass of solute/mass of solution*100

Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 4.45 m and a density of 1.25…

A:

Q: What mass of KI is dissolved in 500.0 g of a solution that is 10.0% KI by mass?

A: mass of solution = 500.0 gmass percent = 10.0 %mass of KI = ?

Q: When an ionic compound such as sodium chloride (NaCl) is placed in water, the component  atoms of…

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Q: A solution of H2SO4(aq) (98.07 g/mol) with a molal concentration of 4.60 m has a density of 1.25…

A:

Q: the density of a 3.539 M HNO3 aqueous solution is 1.150 g x mL-1 at 20 Degrees C. What is the molar…

A: Given Molarity = 3.539 M Density = 1.15 g/ml

Q: What is the concentration in molarity of an aqueous solution which contains 1.15% by mass acetone…

A: 1.15 % by mass , 100 g solution contains 1.15 g actone Moles of Acetone =1.15/58.08       = 0.0198…

Q: What mass of KI is dissolved in 900.0 g of a solution that is 75.0% KI by mass?

A: Mass percent of a solution is given by:

Q: Calculate the molality of KCl in the solution. Express vour answer with the appropriate uni

A:

Q: Determine the percent by mass of MgCl2 if 3.1 g of MgCl2 is dissolved in 41.1 g of water.

A: Calculate total mass of solution:

Q: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 5.21 m and a density of 1.20…

A: Given:Molality of Glucose = 0.258 mDensity of glucose solution = 1.20 g/mLFirst calculate the mole…

Q: What is the concentration in molarity of an aqueous solution which contains 32.41% by mass…

A:

Q: What is the mass percent NaCl when 30.3 grams of sodium chloride are dissolved in 127.2 grams of…

A: The objective of this question is to calculate the mass percent of sodium chloride (NaCl) in a…

Q: Calculate the mass of NaOH pallets in grams needed to prepare 50 mL of 0.25 M NaOH solution. The…

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Q: A saturated solution of a compound contains .15g of solute in 100 g of water.  Is a second solution…

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Q: Molarity! A solution is prepared by dissolving 20.0 g of Chloroform (CHCl3) in 60.0 gram of benzene…

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Q: A solution contains 20.0% (by mass) of ammonium sulfate, (NH4)2SO4, and has density of 1.12 g/mL.…

A:

Q: What is the mass % of acetonitrile in a 2.17 M solution of acetonitrile (MM = 41.05 g/mol) in water?…

A: The mass percentage of  acetonitrile can be calculated by using Following formula - Molarity=mass %…

Q: An aqueous solution of HNO3 was prepared having a molality concentration of 6.29. (Atomic…

A: according to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

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.