You have a method that requires you to make a solution of disodium hydrogen phosphate (Na2HPO4). It specify the 1.65 g of disodium hydrogen phosphate dihydrate should be dissolved in 200 ml water. You only have disodium hydrogen phosphate heptahydrate in stock. Calculate the mass you have to weigh of the disodium hydrogen phosphate heptahydrate to obtain the same concentration of disodium hydrogen phosphate

Q: A student wants to make a 0.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle…

A: final volume = 85.7 mL

Q: The density of a 5.58 m aqueous acetic acid is 1.04 g∙mL –1. What is the molar concentration of this…

A: Given that, The density of a 5.58 m aqueous acetic acid is 1.04 g∙mL–1 The molar mass of acetic…

Q: . Solid sodium fluoride is slowly added to 125 mL of a 0.111 M calcium bromide solution until the…

A: The solubility product of salt is a constant at a given temperature irrespective of the source from…

Q: 71.  What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution…

A: Given,Volume of solution = 1.00L. Density of 10.0% solution = 1.109g/mL.

Q: Calcium nitrate  (Ca(NO3)2 ; MM =164.0878 g/mol)) dissolves in cold water to the extent of 266 g per…

A: Given: Calcium nitrate [Ca(NO3)2] dissolves in cold water to the extent of 266 g per 100 mL Ca(NO3)2…

Q: What is the molarity of an aqueous solution prepared by adding 36.5 g of barium chloride to enough…

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: What is the concentration of an aqueous sodium sulfide solution that is prepared by dissolving 18.6…

A:

Q: e molarity of a 9.00% by mass ammonium chloride aqueous solution at 20 celsius? Density of the…

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

Q: What is the molarity of a solution where 0.082 grams of sodium chloride was dissolved in water to…

A: Since you have posted multiple questions, we will solve the first one for you. Kindly post the…

Q: What is the concentration of an aqueous sucrose solution that is prepared by dissolving 171.2 g of…

A:

Q: A dose of Brand X cough syrup has a mass of 32.0 g and contains 0.850 g acetaminophen. What is the…

A:

Q: What is the concentration of an aqueous caffeine solution that is prepared by dissolving 36.8 g of…

A: We are having 36.8 g of caffeine, C8H10N4O2 Molar mass of caffeine, C8H10N4O2  = (12*8 +…

Q: If I make a solution by adding water to 35 mL of methanol (CH,OH) until the final volume of the…

A:

Q: 1.A solution of zinc nitrate is added to a solution of magnesium sulfate. 2.You make 1.000 LL of an…

A:

Q: chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II)…

A:

Q: A solution of sodium carbonate, Na2CO3, contains 53.0 g of solute in 215 mL of solution. Determine…

A:

Q: 1. A solution of sodium bicarbonate is prepared by adding 45.00 g of sodium bicarbonate to a 1.00-L…

A:

Q: One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCI) by…

A: Molarity is defined as a number of moles of solute dissolved in one liter of solution.…

Q: What is the molarity of a solution that was prepared by adding 10.4 g of potassium chloride to…

A: The molarity is the concentration term that is defined as the number of moles of solute in liters…

Q: The concentration of urea in a solution prepared by dissolving 16 g of urea in 25 g of H2O is…

A: Given that, Mass of urea (solute) = 16 g Mass of water 9solvent) = 25 g Mass of solution = 16 g + 25…

Q: What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of…

A: Given,97.0% NaOH by massDensity= 1.109 g/mL

Q: What mass of NaOH is contained in 290.0 mL of a 0.470 M sodium hydroxide solution? Mass = ____ g

A: Given data: Volume of NaOH = 290.0 mL Molecular weight of NaOH = 40 g/mole Molarity = 0.470 M

Q: A student wants to make a 1.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle…

A: To calculate the final volume of the solution for 1.6 M solution of BaSO4 containing 12.00 g of…

Q: An aqueous solution of manganese (II) iodide,MnI2,is made by dissolving 21.1 grams of manganese(II)…

A: Weight/Volume percentage = it tells about amount of solute present per 100 mL of solutionWeight of…

Q: A chemist must dilute 46.2 mL of 121. µM aqueous mercury(II) iodide (HgI₂) solution until the…

A:

Q: Determine the molarity of a solution prepared by dissolving 155.6 g of citric acid, C3H5O(COOH)3, in…

A: Mass of citric acid=155.6 g   Molar mass of citric acid = 192.124 g/mol Moles = Mass ÷  Molar mass…

Q: An ethanol-water solution has been prepared by dissolving 10 mL of ethanol (d=0.789 g/mol) in a…

A: Given:- Volume of ethanol = 10 mL Density of ethanol = 0.789gml Volume of solution = 100 mL Density…

Q: 1. What are the normality and molarity of a solution prepared by dissolving 8.050g Ba(0H)2· 8H20 in…

A: Molar mass of Ba(OH)2 . 8H2O = 315 g/mol  Volume = 1500 ml = 1.5 L

Q: A solution is prepared by combining 8 g of sodium hydroxide (NaHO) with 245 g of H2O and the…

A: The mass of solute sodium hydroxide is 8 g and it dissolves in 245 g of water and the mass of the…

Q: A student wants to make a 1.600 M aqueous solution of barium sulfate, BasO4, and has a bottle…

A:

Q: Consider a solution prepared by adding 2.70 g acetic acid, CH3CO2H, to 122.8 g of H2O. (a) what is…

A: Given: Mass of water = 122.8 g. And mass of acetic acid = 2.70 g.

Q: When solutions of silver nitrate and sodium chloride are mixed, silver chloride precipitates out of…

A: Consider the given balanced equation is as follows; Reaction:       AgNO3aq     +    NaClaq      →…

Q: Household bleach is an aqueous solution that contains 63.3 g of sodium hypochlorite, NaOCI, per 300…

A:

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 94.89 g MeOH per 64.88 mL…

A: The amount of water is needed 42.82 mL.

Q: Suppose 1.24 g of sodium chloride is dissolved in 200. mL of a 28.0 m M aqueous solution of silver…

A:

Q: A chemist adds 125.0 mL of a 0.183M potassium dichromate (K,Cr,O,) solution to a reaction flask.…

A: Mass of Potassium Dichromate can be calculated in the following way:

Q: 1. A stock potassium dichromate solution (K,Cr,0,; molar mass is 294.2 g/mol) is prepared for…

A: the solution of pottasium dichromate is given

Q: 4) Write a chemical equation describing the dissolution of Ba(NO3)2 in water. To give you an example…

A: Given, Mass of Ba(NO3) is 41.9 grams. Volume of solution is 495 mL.

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 132.97 g MeOH per 54.44 mL…

A: The question is based on the concept of solubility.   maximum amount of solute that can be dissolved…

Q: If 1.5 g of potassium dichromate (K2Cr2O7) is used to prepare a standard solution in a 250 mL…

A: Solution:    Molarity is the measure of the concentration of species.The amount of solute present…

Q: he concentration of the aqueous sucrose (C12H22O11) solution is 4.00 % sucrose by mass. What is the…

A: Given that:                              Mass percent of solute = 4%…

Q: A solution is made by dissolving 19.4 g of barium chloride, BaCl2, in enough water to make exactly…

A: The given volume of solution is 500 mL. It is known that, 1 mL = 0.001 L. Therefore, 500 mL = 0.5 L…

Q: A diluted solution of sulfuric acis , H2SO4, has a density of 1.523 g/mL. The solution contains 50.0…

A:

Q: 2.) a.) A medical lab technician was tasked with making a saline solution for a patient. The…

A:

Q: An aqueous solution of nickel(II) bromide, NiBr2, is made by dissolving 11.2 grams of nickel(II)…

A: Given-> Weight of nickel(2)bromide = 11.2 gm Volume = 250 ml

Q: You need to make an aqueous solution of 0.196 M iron(III) sulfate for an experiment in the lab,…

A: First of all, we will calculate the number of moles of iron(III) sulfate using molarity equation.…

Q: 2) Sucrose C12H22011 and ethyl alcohol C2H3OH are mixed to form a 14.1 %wt solution. If the density…

A:

Q: If 68.2 g of Al(NO3)3 is dissolved in 7.2 L of water solution. What is the % concentration of…

A: The concentration of the solution is expressed in various ways like molarity, morality, percentage…

Q: One of the Ionic compounds in sports drinks is potassium di hydrogen phosphate. The label on one of…

A: 30mg of potassium in present in 240ml of the solution. The weight of potassium dihydrogen phosphate…

Q: A student wants to make a 1.600 M aqueous solution of barium sulfate, BasO4, and has a bottle…

A: