20. Concentrated ammonium hydroxide is 29.0%mass ammonium hydroxide. How much of the concentrated stock solution is needed to make 500.0mL of a 15.0%mass ammonium hydroxide solution?

Q: What is the percent by volume of a solution formed by mixing 25ml of isopropanol with 45ml water?

A: Percent (v/v) = 100 x Volume of solute/Total volume of solution

Q: 5.0 mL of 3.6 M K2CO3 solution is diluted to make a 0.45 M solution, what is the volume of the…

A: Molarity is used for expressing the concentration of solution, which is expressed as mol/L. Given:…

Q: A student needs to prepare 50.0 mL of 0.80 M aqueous H2O2 solution. Calculate the volume of 5.1 M…

A:

Q: You prepare  45mL of a 0.15M Potassium Chloride solution. What would be the expected mass of 4mL…

A:

Q: solution was prepared by dissolving 39.2g of calcium nitrate in enough water to have 2.50M…

A: Mass of calcium nitrate = 39.2g Molarity = 2.50 M Volume of solution = ?

Q: Concentrated HI is 47.0%/HI by mass and has a density of 1.50 g/mol. (A) how many grams of…

A: A) 0.2449 g of concentrated HI is required. B) 0.1633 mL of concentrated HI is required.

Q: A solution is made using 200.0 mL of methanol (density 0.792 g/mol) and 1049.1 mL of water (density…

A:

Q: Calculate the mass- volume percent of 1.00g of nano3 in enough water to give 75.0ml of solution

A: Since we know that mass by volume percent is define as the percentage of ratio of mass of solute to…

Q: Calculate the volume of 1.0 M (moles) CuSO4 solution needed to make 100mL of a 5.0 x 10 ^-4 M…

A: Dilution of the solution: On dilution of the solution with the pure water, the mole of solute…

Q: A student needs to prepare 50.0 mL50.0 mL of a 0.80 M0.80 M aqueous H2O2H2O2 solution. Calculate the…

A:

Q: Calculate, in mL, the required volume of a concentrated 950 ppm methylene blue solution required to…

A:

Q: 5.00 mL of 10.0 M HCl is diluted to make a solution with a concentration of 2.00 M HCl. What is the…

A: Given data, 5.00 mL of 10.0 M HCl, Let , V1 = 5.00 mL , M1 = 10.0 M After dilution solution with a…

Q: A solution is made using 65.1 g of hexane (MM = 86.18 g/mol) and 60.0 g of octane (MM = 114.2…

A: Given : Mass of hexane = 65.1g Mass of octane = 60g

Q: Calculate the mass (g) of solid potassium carbonate (K2CO3) needed to prepare 50 mL of a 1.0 M…

A:

Q: 75.0 sample of an aqueous solution contains 18.7 grams of potassium iodide. What is the mass percent…

A: In this question, we want to determine the mass percent of potassium Iodide.  How we can calculate…

Q: 5. How many grams of CaCL2 (MM = 110 g/mol) should be dissolved in H20 to prepare a liter of 1.2M…

A: Molarity means moles of solute dissolved in a litre of solution.

Q: What mass of solid copper(II) sulfate is needed to make  500.0 mL of 0.0300 M copper(II) sulfate…

A: Since the molarity of solution is given 0.03 M and volume= 500 mL = 0.5 L              ( since 1 L =…

Q: How many mL of 30% H2O2 solution should be used to prepare a 6% 25 ml H2O2 solution? (d: 1.12g / mL,…

A: Given data,C1=30%C2=6%V2=25mL

Q: Calculate the molarity of a solution consisting of 5.25 g of NaCl in 0.237 L of solution 22.2M 47.0M…

A: The mass of NaCl, the solute is = 5.25 g The volume of the solution is = 0.237 L The molarity of the…

Q: A dioxin-contaminated water source contains 0.066 % dioxin by mass. How much dioxin is present in…

A: To solve this problem we will use the formula  % of dioxin = (mass of dioxin / mass of solution) ×…

Q: Sulfuric acid has a great affinity for water and for this reason the most concentrated form of…

A: We will first find mass of sulphuric acid in 100 g of solution. Then find mass of it in 3 L…

Q: What mass of MgBr2 is required to make 250.0 ml of 0.75 M MgBr2 solution

A: Mass of MgBr2

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: Calculate The MASS-VOLUME PERCENT of 5g of MgCl2 to make 250mL of aqueous solution.

A: We know that ; Mass - volume percent = (Mass of Solute/volume of solution)× 100% By using this…

Q: Twenty percent salt solution (%20)means that: 20 grams of salt dissolved in .A 100g of water .B 90g…

A: The solution composition can be described in mass percentage which shows the mass of solute present…

Q: A solution is prepared by mixing 20.0 ml of methanol with enough water to poduce 400.0 ml of…

A: volume percent is defined as volume of solute to the ratio of volume of solution.

Q: Concentrated HBr is 48% HBr by mass and has a density of 1.50 g/mL.How many grams of concentrated…

A: Given: Concentration of final solution = 1.50 M Volume of final solution = 750 mL = 0.750 L…

Q: Determine the volume percent of a solution made by dissolving: (a) 32.9 mL of butanol in enough…

A: The concentration of a substance can be measured in terms of volume by volume percentage. This…

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

A:

Q: What mass of water will contain 484 g of sucrose (C12H22O11) to make a 0.74 m solution

A: Given Mass of sucrose = 484 g Molality of solution = 0.74 m

Q: how much of the 3.00 M HCl stock solution is needed to prepare 250.0 mL of a 1.35M HCl solution

A: Concentration of HCl solution (C1) = 3.00 M Concentration of HCl solution (C2) = 1.35 M Volume of…

Q: 1. What initial volume of a 10x SDS stock solution would you use to make a 1x solution with a final…

A: Two questions based on concentration terms that are to be accomplished.

Q: Determine the number of grams of H2SO4 that would be contained in 800.0 mL of a 1.5 M H2SO4…

A:

Q: Determine the freezing point of a solution that contains 78.8 g of naphthalene (molar mass 128.16)…

A: Molality of solution can be calculated as follows:

Q: Calculate the number of mL of a 50 ppm solution needed to prepare 50 mL of a 6.4 ppm solution.

A: Given information is,

Q: A concentrated potassium hydroxide solution is 45.0% KOH by mass and has a density of 1.44 g/ml at…

A: In order to find out the amount of KOH present in 1 L of a KOH solution, first, find out the mass of…

Q: Determine the volume percent of a solution made by mixing 50.0 mL of hexanol with enough ethanol to…

A: 1) Volume of Solute ( Hexanol ) = 50 mL        Volume of solution              = 125 mL…

Q: Calculate the volume percent of 269 mL of isopropyl alcohol in enough water to give 1.06×103 mL of…

A:

Q: Calculate the mass of sodium hydroxide (NaOH; 40.00 g/mol) needed to prepare 350. mL of 1.8 M NaOH…

A:

Q: How many milliliters (mL) of a 5.25% (w/v) HCl solution must be used to prepare 240 mL of a 0.175%…

A: Given that: Concentration of stock HCl(C1) = 5.25%(w/V) Concentration of final HCl solution(C2) =…

Q: What is the %v/v of a solution made from 141.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A: % V/V = ? Mass of ethylene glycol = 141.1 g Density of ethylene glycol = 1.11 g/ml Total final…

Q: How much (mL) 2.00 M o f H2SO4 solution is needed to prepare 500. mL of 0.500 M H2SO4 solution,

A:

Q: A solution is made using 81.7 g of hexane (MM = 86.18 g/mol) and 60.0 g of octane (MM = 114.2…

A: We know that, Number of moles = mass/molar mass  Mole fraction = Moles of Solute or solvent/Total…

Q: Calculate how much of a concentrated acetic acid solution (w 36%, p 1.0449 g %3D / ml) is required…

A: The solution is as follows :

Q: Calculate the amount of sugar needed to make 100 ml of 40 degree brix syrup. Specific gravity of 40…

A: Ans. Let us calculate first denaity of brix solution :- Specific gravity=Density of 40 degree…

Q: Mass of sodium chloride used to create a 100 ml solution at a concentration of 1.5 M

A: We need to find mass of sodium chloride.

Q: Calculate the percent by mass of a solution composed of 35.0g of KNO3 and 57.5g of H2O

A: % concentration (by mass) =( mass of solute ÷ mass of solution)× 100 % Mass of solution = mass of…