4 a)The mole fraction of iron(III) nitrate, Fe(NO3)3, in an aqueous solution is 6.42×10-2 . The percent by mass of iron(III) nitrate in the solution is________  %. b)An aqueous solution is 20.0 % by mass hydrochloric acid, HCl, and has a density of 1.10 g/mL. The mole fraction of hydrochloric acid in the solution is_______  . c)An aqueous solution is 28.0 % by mass potassium bromide, KBr, and has a density of 1.24 g/mL. The mole fraction of potassium bromide in the solution is_______  .

Q: In chemistry, concentrations of solutions are most often described using molarity (M). What are the…

A: Molarity, molality, normality, mole fraction, and other approaches are commonly employed to…

Q: An isotonic solution contains 25.76 grams of glucose (C6H12O6; molar mass = 180.2 g/mol) dissolved…

A: Isotonic solution means the solution which contains solute in the same concentration, as another…

Q: Predict the organic products that form in the reaction below: y" + -OH H* H+ Y Note: You may assume…

A: Given,The reaction:

Q: Calculate the mass percent by volume of 104.6 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of…

A: % w/v = 100 x Mass of solute in g/Volume of solution (mL) Given that: Mass of glucose = 104.6 g…

Q: How much solid calcium hydroxide is required to make 750 mL of a 1.50 M calcium hydroxide solution?…

A: We know that, Molarity = number of moles/volume in litre And, Number of Moles = mass/molar mass

Q: Calculate the mass percent by volume of 41.6 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of…

A: The mass of solute in gram present in 100 mL solution is known as the mass percent concentration of…

Q: A) How many grams of KOH are needed to prepare one liter of 5.37M solution?B) From this solution,…

A: A.) 301 g of KOH is needed to make one liter of 5.37 M solution .B.) 32 ml of 5.37 M solution is…

Q: Sulfuric acid is a solution of hydrogen sulfate, H2SO4, in water. When concentrated, it is extremely…

A: Given: The volume of the solution, (V)=25.0mL = 0.025 L. The given mass of H2SO4, (m)=44 g. The…

Q: A student needs to prepare 50.0 mL of a 1.00 M aqueous H₂O₂ solution. Calculate the volume of 5.1 M…

A:

Q: Describe all the steps including mass of salt that is needed to make a 0.2 molar CaCl2 solution!

A: MOLARITY IS DEFINED AS THE NO. OF MOLES OF SOLUTE IN TOTAL SOLUTION  SO, MOLARITY= NO. OF MOLES /…

Q: Expand the units of molarity for this solution: 0.09 M NaOH When the units are expanded, enter the…

A: The concentration of a solution (M) can be expressed as follows: Molarity (M)  =  Number of moles of…

Q: What is the molarity of a solution containing 8.6 g of NaBr in 0.85 moles of water? (density of…

A: Given, Mass of NaBr = 8.6 g Moles of water (H2O) = 0.85 moles Density of solution = 1.10 g/mL…

Q: 12.0g of sodium hydroxide is dissolved in 2.5L of solution. What is the molar concentration of…

A:

Q: What is the molarity of a concentrated HBR solution if the solution is 69.7% Hbr by mass and has a…

A: 69.7% HBr by mass means, 69.7 g of HBr in 100 g of solution. So, number of moles of HBr in solution…

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

A:

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: Calculate the Molarity of a hypothetical 8.51% (by mass) aqueous HCl solution. The solution has a…

A: Molarity is defined as the number of moles of solute dissolved per liter volume of the solution. The…

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: What is the concentration in molarity of an aqueous solution which contains 5.36% by mass ethylene…

A: The objective of this question is to calculate the molarity of an aqueous solution of ethylene…

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: 5: An 8.0% NaCl solution has a density of 1.05 g/mol. What is the molar concentration (M) of the…

A: Density, mass and volume are related as Density(d) = mass/volume. Volume = mass/density. Given, 8%…

Q: A student needs to prepare 50.0 mL of a 1.00 M aqueous H₂O₂ solution. Calculate the volume of 4.9 M…

A: Given, Stock solution Concentration of H2O2 solution (M1) = 4.9 M Volume of H2O2 solution (V1) = ?…

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: 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: 0.28g of sodium sulfate (molar mass = 142.04 g/mol) is dissolved into 50mL of water. It is labeled…

A: Given that:                 Mass of sodium sulfate = 0.28 g                         Volume of…

Q: An 804. g solution of Kool-Aid contains 377. g of water. What is the mass percent of Kool-Aid mix in…

A:

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

A:

Q: What is the molarity of a 7.4 % by mass Mg(NO3)2 solution? Assume the density of the solution is 1.0…

A:

Q: What is the mass percent of 1.39 M NaCl solution? The density of this solution is 1.05 g/ml

A:

Q: Consider a 0.855 M solution of LiCl (molar mass= 42.39 g/mol) . How many mols of LiCl are in 317.5…

A: Given: The molarity of the LiCl solution = 0.855 M The molar mass of LiCl = 42.39 g/mol We have to…

Q: What is the concentration in molarity of an aqueous solution which contains 1.31% by mass ethylene…

A: Given: Mass percentage = 1.31% Molar mass of ethylene glycol = 62.07g/mol Density = 1.04g/mL

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.