A solution is prepared by diluting 0.7850L of 1.262M K2S solution with water to a final volume of 2.0L. How many grams of K2S were dissolved to give the original solution? MM = 110.26 g/mol

Q: Calculate the number of moles of solute in 69.67 mL69.67 mL of 0.1275 M K2Cr2O7(aq). How many grams…

A: The SI unit for the amount of substance present in a given compound is called its number of moles.…

Q: How many grams of solute are present in 19.0 mL of 0.746 M K2Cr2O7? If 13.6 g of (NH4)2SO4 is…

A: Given:Volume of solution = 19.0 mL Molarity =  0.746 M We need to calculate the mass of solute in…

Q: Sherri is asked to dilute her prepared CuCl2 solution with a volume of 655ml CuCl2 and a…

A: Given  Initial Volume of Solution (V1)= 655 mL                                                 =…

Q: A solution was prepared by dissolving 0.403 g of potassium dichromate, K2Cr2O7 (MM=294.18 g/mol) in…

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Q: A 500 mL aqueous solution of Na3PO4 was prepared using 82g of the solute. What is the molarity of…

A: A numerical problem based on molarity concept, which is to be accomplished.

Q: A concentrated solution of HCI has a molarity of 7.75 M. You add 28.50 mL to a flask and then dilute…

A: Given 28.5mL of 7.75M HCl is solution is diluted such that final mass of solution is 125g  We have…

Q: Have a solution containing 16.2% by mass of sodium thiosulfite, Na2S2O3 a) How many moles of Na2S2O3…

A: The given solution contains 16.2% Na2S2O3 by mass. Molar mass of Na2S2O3 is 158.11 g/mol Here we…

Q: 1.Bleach solution contains the solute sodium hypochlorite (NaOCl). How many grams of NaOCl are in…

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Q: Physiological saline is used for intravenous infusions (IVs) and is 0.155 M NaCl. To prepare 2…

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Q: A solution is made by adding 71.2 g of Na2S to water until the solution volume is 500.0 mL.  What is…

A: Mass of the Na2S is 71.2 g Volume of solution is 500 mL = 0.500 L Molarity of a solution can be…

Q: 0.20 L of a 0.53 M aqueous solution of sodium nitrate is mixed with 300 ml of another 0.71 M aqueous…

A: Solution 1: 0.20L of 0.53M aqueous solution of NaNO3Number of moles of NaNO3 in solution 1= Molarity…

Q: An aqueous potassium iodate stock solution is made by dissolving 7.14 mol KIO37.14 mol KIO3 in…

A: The number of moles of solute dissolved per litre volume of solution is called the molarity of the…

Q: An aqueous potassium iodate stock solution is made by dissolving 5.49 mol KIO, in sufficient water…

A:

Q: A reagent bottle is labeled 0.255 M K2SO4. (a) How many moles of K2SO4 are present in 25.0 mL of…

A: Four questions based on calculation volumetric analysis.

Q: . What is the molarity of a solution made by dissolving 3.4g of KMnO4 in 5.2 liters of water? 2.…

A: Molarity or molar concentration of any substance in solution:    Molarity of any solute in a…

Q: 1. What mass of NaCl is needed to prepare 5000 vaccine doses? 2. Find the concentration of the…

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Q: A concentrated KOH (MW = 56.105 g/mol) solution is 45.0 %wt KOH and has a density of 1.45 g/mL. How…

A: In the given question we have to calculate the volume of concentrated KOH required to dilute the…

Q: An aqueous solution that is 22% by mass sodium chloride is prepared with 25 g of water.  What mass…

A: It is the mass of solute in gram present per 100 gram solution .a solution is a special type of…

Q: What is the molarity of a solution that is prepared by mixing 37.0 mL of ethanol in 100.0 mL of…

A: Given, The volume of ethanol = 37 ml volume of water = 100 ml Volume of solution = 133 ml Density of…

Q: What mass of a concentrated solution of nitric acid (68.0% HNO3 by mass) is needed to prepare 400.0…

A: Given: Initial mass percentage of nitric acid = 68.0%Final mass percentage of nitric acid =…

Q: A stock solution of MgCr0, is available to prepare solutions that are more dilute. Calculate the…

A: • The values provided in the question are:-    i) Initial volume of MgCrO4 solution, M1 = 2.0 M…

Q: Calculate the final molarity for a solution made from 19.1 mL of a 207.5 mg/L solution which is…

A: The molarity of a solution is given by:

Q: 33.52 g of glucose ( C6H12O6  Molar mass = 180.18g/mol) is dissolved in 474.9 ml of solution what is…

A:

Q: A 19.51 ݃ sample of impure methylamine, which contains 72.58% (by mass) of CH3NH2 , is reacted with…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: If 3.66 L of a 0.915 M H3PO4 solution is diluted to a volume of 14.00 L, what is the concentration…

A: In problem:a) 1) The initial H3PO4 solution volume (V1) is= 3.66 L 2) Concentration of H3PO4…

Q: If 150 mL of a 1.8 M solution is diluted to a final concentration of 0.5 M, what is the final volume…

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Q: You dilute 6.50mL of a 0.987 M solution to a final volume of 50.00mL. Then, you take 25.00 mL of…

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Q: Calculate the mass percent of a sucrose solution that is made by mixing 8.270 grams of sucrose into…

A: We have prepare a solution by mixing 8.270 g of sucrose into water until the solution has a mass of…

Q: How many grams of CaCl, are needed to make 636.6 g of a solution that is 41.5% (m/m) calcium…

A:

Q: he mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A: How many grams of sucrose are needed to make 855 mL of a 35.0% (w/v) sucrose solution? Required…

Q: 2) A sample of 0.892 g of potassium chloride (KCI) is dissolved in 54.6 g of water. What is the…

A: The formula for finding the mass percent is given by: Mass % = mass of solutemass of solute + mass…

Q: An aqueous potassium iodate (KIO3KIO3) solution is made by dissolving 518518 grams of KIO3KIO3 in…

A: The aqueous potassium iodide is given in the solution- Mass of KIO3 = 518 g Volume of the solution =…

Q: In a laboratory, a 15.0 mL sample of KCl solution is poured into an evaporating dish with a mass of…

A: a) and b) Given :-  Volume of KCl solution =  15.0 mL Mass of evaporating dish = 24.10 g. Mass of…

Q: A solution is prepared by mixing 703 mL of ethanol with 697 mL of water. The molarity of ethanol in…

A: The number of moles of solute to the volume of solution in liters is known as molarity.

Q: Calculate the molarity of a solution prepared by diluting 343. mL of 0.337 M K2Cr207 with 660. mL of…

A: Given the volume of K2Cr2O7 solution =343 mLmolarity of K2Cr2O7 solution =0.337 Mthe solution was…

Q: A solution of ethanol (C2H5 OH) in water is prepared by dissolving 85.0 mL of ethanol (density =…

A: Given :-  volume of ethanol = 85.0 mL  density of ethanol = 0.79 g/cm3  volume of solution = 350.0…

Q: How many grams of CaCl2CaCl2 are needed to make 623.4623.4 g of a solution that is 36.036.0% (m/m)…

A:

Q: *9. ssm The preparation of homeopathic “remedies" involves the repeated dilution of solutions…

A: mass As2O3 = 18.0 g moles As2O3 = (mass As2O3) / (molar mass As2O3) moles As2O3 = (18.0 g) / (197.84…

Q: 1) 11. 3 g BaI2 is dissolved in 145.0 g of H2O. Calculate the percentage concentration (by mass) of…

A: Since you posted multiple questions, we only answered the first one   1) We have  Percent…

Q: 1. a. A solution is created by mixing 35.3g of C&H12O6 with 100.0mL of water. (Molar Mass of CoH12Os…

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Q: 1) KOH and NaOH are dissolved in water to form a 2.48 molar solution. If 42.9 g of NaOH are used and…

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

Q: A concentrated solution of HCl  has a molarity of 10.3 M.  You add 41.00  mL to a flask and then…

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Q: What is the mass percent (m/m) of the KCl solution?   b) What is the molarity (M) of the KCl…

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Q: 0.2265 g pure sample Nacl was dissolved in water, the added to it 60 ml of AgNO3 solution. The…

A: The question is based on the concept of titrations. we have been given mass of sodium chloride which…

Q: A solution of ethanol (C2H5OH) in water is prepared by dissolving 75.0mL of ethanol (density = 0.79…

A: Given: We have to determine molarity of solution. Volume of ethanol = 0.79 g.cm-3 Density of ethanol…

Q: A student mixes 7.0 mL of 6.0 M acetone solution with 6.0 mL of 5.0 M HCI solution and then adds…

A: Initial acetone solution is 7.0 mL  6.0 MNumber of moles of acetone = Molarity × Volume of solution…

Q: 50.020 g sucrose were used to prepare 300.0 mL of solution (sp. gr. = 1.17). What is the % by mass…

A: Given, 50.020 g sucrose were used to prepare 300.0 mL of solution (sp. gr. = 1.17).

Q: ML b. Describe how you would prepare 1 L of a 50 mM solution of acetic acid. The gram formula weight…

A: There are different ways in which we can express  the concentration of the species