How many grams of water must be used to prepare a 2.50 percent by mass (%m/m) sodium hydroxide (NaOH) solution from 12.7 g NaOH?    Report your result in decimal notation and to the proper number of significant figures. All numbers are measured.

Q: The solubility of (NH4)2SO4 in water is 75.4 g of (NH4)2SO4 per 100 g of water. 34.2 g of (NH4)2SO4…

A: Solubility is defined as the maximum amount of solute that is dissolved in 100g of solvent. This…

Q: A chemist mixes 29.8 g of acetone with 38.5 g of isopropenylbenzene and 57.3 g of acetic acid.…

A: Given that, a mixture contains 29.8 g of acetone, 38.5 g of isopropenylbenzene, and 57.3 g of acetic…

Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 39. g of barium chloride…

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Q: solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting…

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Q: Question attached

A: We know that, Volume % is given by Volume %=Volume of soluteVolume of solution X 100..............1…

Q: A chemist must prepare 825. mL of 2.00 M aqueous aluminum chloride (AlCI,) working solution. He'll…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: A chemist must dilute 45.8mL of 769.mM aqueous aluminum chloride (AlCl3)solution until the…

A: Given data is as follows: The initial volume of the aqueous aluminum chloride V1 = 45.8 mL The…

Q: Give the mass of the solute and mass of the solvent for 1.30 L of a solution that is 17.0 %% of…

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Q: A chemistry student weighs out 45. g of an unknown solid compound X and adds it to 750. mL of disti…

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Q: What is the percent by mass KBr of a solution that contains 54.5 grams of KBr and 100.8 grams of…

A: The concentration of the solution is defined as the amount of solute present in the solution. In a…

Q: A pharmacist adds distilled water to 4.00 g of a powdered drug. The final volume of the solution is…

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Q: A certain liquid X has a normal freezing point of –3.20 °C and a freezing point depression constant…

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Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 125. g of iron(II)…

A: Given-> Weight of FeBr2 = 125 gm  Volume = 350 ml = 0.350 L (1 L = 1000 ml)

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: In the given question we have to calculate the volume of chlorine solution in millilitres a…

Q: A chemist prepares a solution of barium acetate  BaCH3CO22  by measuring out  27.μmol  of barium…

A: Given: No of moles of Barium acetate = 27μmol Volume of acetate solution = 250mL = (250/1000)L =…

Q: Determine the amount of potassium chloride in each solution. 18.5 g of a solution containing 1.08…

A: Since, mass%=mass of solutemass of solution×100

Q: A chemist mixes 8.0 g of carbon tetrachloride with 25. g of thiophene and 85. g of…

A: Mass of carbon tetrachloride  = 8 gMass of thiophene                  = 25 gMass of…

Q: A chemist must dilute  40.6mL  of  105.μM  aqueous silver(II) oxide  AgO  solution until the…

A: Given: Initial concentration (original solution), M1 = 105 μM The initial volume (original…

Q: A chemist prepares a solution of copper(II) fluoride CuF2 by measuring out 0.0312g of copper(II)…

A: Given that : A chemist prepares a solution of copper(II) fluoride CuF2 by measuring out 0.0312g of…

Q: A chemist must dilute 48.0 mL of 3.86 M aqueous iron(III) bromide (FeBr,) solution until the…

A: Given : Initial volume of solution = 48.0 mL Initial concentration of FeBr3 = 3.86 M And final…

Q: What is the percent by mass NaCl of a solution that contains 85.1 grams of NaCl and 119.1 grams of…

A: Percentage by mass (% m/m or % w/w )=mass of solutemass of solution×100%

Q: A potassium bromide solution is 7.55% potassium bromide by mass and its density 1.03g / m * L . What…

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Q: A chemist must dilute  53.4mL  of  3.91M  aqueous iron(III) bromide  FeBr3  solution until the…

A: Since the chemist is diluting the solution by just adding the water. Hence the moles of FeBr3 will…

Q: Determine the molarity of aluminum sulfate in the solution prepared by dissolving 15.00 grams of…

A: Molarity of a substance is measured as the solute moles mixed in a solution of 1L. It's expressed as…

Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 84.7 g of calcium bromide…

A:

Q: A chemist must dilute 62.6mL of 2.81M aqueous sodium thiosulfate Na2S2O3 solution until the…

A: Here given, Initial volume (V1) = 62.6 mL Initial strength (S1) = 2.81 M Final volume (V2) = ? Final…

Q: A beaker has a mass of 40.94 g. After 5.00 mL of the concentrated hydrochloric acid solution is…

A: The density of a substance is calculated by formula  Density =mass ÷volume  Given mass of beaker…

Q: 1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water? 2. A…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: We have given that  Concentration of glucose = 5% by mass   Given that : density of Solution : 1g/mL…

Q: A 125ml sample of an 8.2 M NaCl solution is diluted to 3.0 L . What volume of the diluted solution…

A: Concept:  Upon dilution the moles would remain constant , using this we can predict the new Molarity…

Q: A solution is made by mixing 5.40 g of toluene, CHg(1), with 954. mL of chloroform, CHCI3(1).…

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Q: A chemist mixes 81.1 g of water with 72.2 g of methanol and 28.4 of acetic acid. Calculate the…

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Q: A chemist prepares a solution of sodium hyposulfate Na2S2O3 by measuring out 279.μmol of sodium…

A: Concentration (M) = number of moles / volume of the solution (in L)                               =…

Q: When 50. mL of 5.4 M NaCl is diluted to a final volume of 300. mL, what is the concentration (M) of…

A: We know that,  V1S1 = V2S2 Where, V = Volume  S = strength or concentration

Q: In the lab you weigh 12.54 g of NaCl to make a stock solution of 5.12 M. To further dilute the…

A: Given data, Initial concentration (stock solution M1) Final concentration (M2) Final volume (further…

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: Given: Mass of ethylene glycol is 141.1 g Density of ethylene glycol is 1.11 g/mL. Density of water…

Q: A chemist must dilute 52.1mL of 1.25M aqueous sodium carbonate Na2CO3 solution until the…

A: Given,V1 = 52.1 mlN1 = 1.25 MN2 = 1.00 MV2 = ?

Q: A chemist must dilute 61.8 mL of 6.71 M aqueous potassium iodide (KI) solution until the…

A: FOR DILUTION M1V1= M2V2 where M1 = Initial molarity of solution, V1 = initial volume of solution, M2…

Q: A chemist prepares a solution of potassium dichromate (K,Cr,O,) by measuring out 35. g of potassium…

A: Molarity of a solution represents the concentration of a solution, which is expressed as mol/L.…

Q: A solution is made by dissolving 3.25 grams of a substance in 180 mL of water. Calculate the density…

A: The given mass is 3.25 g. It is known that, 1 g = 10-3 kg.Therefore, the value of mass in kg is…

Q: A solution contains 38% phosphoric acid by mass. This means that ________. A. the density of this…

A: since % by mass is defined as the mass percent of solute present in the solution  Hence % by mass of…

Q: Calculate the volume in liters of a 25.7 g/dL aluminum sulfite solution that contains 63.0 g…

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Q: A certain organic compound O has a solubility in hexane of 0.780 –- at 10. °C. Calculate the…

A: In this question, we will calculate the greatest mass of organic compound O dissolved in hexane. You…

Q: A chemist must dilute 15.5 mL of 5.62 M aqueous sodium chloride (NaCl) solution until the…

A: Given, initial concentration of aqueous solution of NaCl =5.62 Minitial volume of solution =15.5…

Q: umol A chemist must prepare 975. mL of 16.0 µM aqueous silver(II) oxide (AgO) working solution.…

A: Given : Final concentration of AgO = 16.0 µM Final volume of solution = 975 mL And Initial…

Q: What is the percent by mass NaCl of a solution that contains 85.7 grams of NaCl and 104.1 grams of…

A: The percent by mass of NaCl of a solution is calculated by dividing the mass of NaCl by the mass of…

Q: A chemist must dilute 80.6 mL of 82.1 uM aqueous mercury(II) iodide (Hgl,) solution until the…

A: Given : Initial concentration of HgI2 = 82.1 µM Initial volume of sample = 80.6 mL Final…

Q: 1. A student prepares a 600.0 mL of 500.0 ppm of glucose solution. What volume of this solution (in…

A: Given,  Volume of the solution = 600.0 mL  Concentration of glucose solution in ppm = 500.0 ppm…

Q: Calculate the molarity of each solution 33.2 mg of KI in 122 mL of solution Express your answer…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: What is the percent by mass KBr of a solution that contains 88.7 grams of KBr and 119.7 grams of…

A: Given mass of KBr = 88.7 g Given mass of water = 119.7 g Mass percent is tells the concentration of…