You want to prepare 450.0 mL of a 145 ppm K+ ion solution.  The density of the solution is 1.01 g/mL.  You have at your disposal a solution that is 0.728 M in K2SO4.  How many mL of the K2SO4 solution do you need to use? 1.16 mL 3.75×10−6mL 2.56 mL 0.860 mL 116 mL

Q: Calculate the molarity of each of the following solutions.  0.450 mole of urea (CH4N2O) in 2.50 ×…

A: The molarity is given by the formula  as follows: Molarity=MoleVolumeL

Q: How many grams of sodium hydroxide is required to make 250.0 mL of a 0.410 M sodium hydroxide…

A: Given,  The molarity of sodium hydroxide ( NaOH) = 0.410 M.  The volume of the solution = 250.0 mL.…

Q: 25.0 mL of a 0.95 M lead (II) chloride solution are mixed with 25.0 mL of a 0.75 M aluminum iodide…

A: Given: Volume of PbCl2 solution = 25.0 mL Molarity of PbCl2 solution = 0.95 M Volume of AlI3…

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Q: uppose 7.94 g of ammonium sulfate is dissolved in 100. mL of a 0.70 M aqueous solution of sodium…

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Q: A normal level for sodium ion (Na+Na+) in human blood is 0.140 MM. How many grams of sodium ion are…

A: Given ->  Concentration of Sodium ion = [Na+] = 0.140 M  Volume= 75.0 ml = 0.075 L (1L = 1000ml)…

Q: What is the minimum volume of a 1.80 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH…

A: Step 1: A solution's molar concentration, or molarity, will decrease as its volume increases. In…

Q: If 400 mL of water is added to 250 mL of a 2.4 M MgCl2 solution, what is the final concentration of…

A: Introduction: Molarity:  Molarity is often used to express the concentration of the solution. It is…

Q: What is the mass % of propylene glycol in a 2.77 M solution of propylene glycol (MM = 76.09 g/mol)…

A: Mass percent shows the mass of solute present during a given mass of solution.  Mass percent is…

Q: A student pours 350 mL of a 6.0 molar solution of sodium hydroxide into a 750 mL volumetric flask…

A: Given data : Initial volume of the solution = 350 mL = 0.35 L Molarity = 6 M So, Number of…

Q: A 4.90% by mass solution of KCl has a density of 1.03 g/mL. What is the molarity of this solution?…

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Q: I add 2.00 g NaCl and 6.42 g BaCl₂ to a a container. You can assume that both of these salts are…

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Q: What volume  (in mL) of 5.65 M HCl can be made by mixing 6.55 M HCl with 424 mL of 4.45 M HCl?

A: The 5.65 M HCL solution is made by mixing 6.55 M HCl with 424 mL of 4.45 M HCl.  The volume of 5.65…

Q: 1. Convert 5% by mass acetic acid (MM = 60.052 g/mol) to molarity. 2. How many moles of acetic acid…

A: PART 1.Given:mass % of acetic acid =5% (m/m)Let, mass of acetic acid= 5g∴ mass of solution =100gmass…

Q: If a student wants to make 235.0 mL of a 3.25M stock solution of CuCl 2, how many grams of solid,…

A: Given : Volume of stock solution = 235 ml Molarity of stock solution = 3.25M

Q: Part C You need to prepare a 2.30  M � solution of potassium bromide (molar mass of potassium…

A: The objective of the question is to determine the mass of potassium bromide required to prepare a…

Q: You need 500 mL of a 0.5 M iron(III) chloride solution. You only have a 3.0 M FeCl3 solution on…

A: For constant number of moles, the product of molarity and volume of a solution is constant.

Q: You need 500 mL of a 0.5 M iron(III) chloride solution. You only have a 3.0 M FeCl3 solution on…

A: On dilution of the FeCl3 solution with the pure water, the mole of solute (FeCl3) remains constant…

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Q: 56. Determine the molarity of 2.54 kg of CuSO4 • 5H20 in 1.51 L of solution. Record your answer in…

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Q: A student is asked to prepare 250 mL of a 0.0104 M NaCl solution. The student found a stock bottle…

A: Given: A student has to prepare 250 mL of 0.0104 M NaCl solution using 34.7 mL of 0.0723 M NaCl…

Q: Calculate the volume of solution in liters, L, needed to prepare a 0.650 M solution from 180.0 g of…

A: The objective of this question is to calculate the volume of solution needed to prepare a 0.650 M…

Q: To what volume should you dilute 150.0 ml of an aqueous 4.00 M potassium phosphate solution so that…

A: The process of dilution is defined as the process in which a solution with a lower concentration is…

Q: To prepare a 250 mL, 0.55 M NaOH solution from a 0.69 ±0.01 M stock solution, what is the volume of…

A: Given that:  Molarity of stock NaOH solution(M1) = 0.69M Molarity of final NaOH solution(M2) = 0.55M…

Q: Which of the following aqueous solutions contains the greatest number of ions? 200.0 mL of 0.10 M…

A: a)200mL of 0.10 MKBrMolarity of KBr =0.10MVolume of KBr solution=200mL=0.2Lmoles of KBr=Molarity of…

Q: In the lab, a student makes a solution of KOH by dissolving 52.0 grams of solid in 255 mL of water.…

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Q: 3) It takes 29.61 mL of 0.246 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid…

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Q: A 15.0 mL 0.500 M NaNO3 solution is mixed with 50.0 mL 0.200 M Fe(NO3)3 solution. What is the molar…

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Q: What is the molarity of a solution made by dissolving 112.43 g of sodium sulfate, Na2(SO4) (142.04…

A: The mass of sodium sulfate (solute) is 112.43 g.The molar mass of the sodium sulfate is 142.04…

Q: An aqueous solution contains 71.26 g LiCl per 675 mL of solution. What is the molarity of this…

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Q: 50.00 mL of a 0.1001 M solution of HNO3 was prepared by diluting 8.00 mL of a stock solution.…

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Q: what volume of 18.0 M sulfuric acid is required to prepare 2.00 L of 0.150 Mg(NO3)2 solution

A:

Q: What volume of 0.252 M potassium hydroxide solution is required to completely neutralize 0.0106…

A: Chemical ReactionH3PO4 +3 KOH →K3PO4  + 3H2OMolarity of KOH = 0.252 MMoles of Phosphoric Acid =…

Q: 'm trying to calculate the amount of sucrose in Cola. volume=50mL mass = 54.2060 g Density=…

A: Number of moles of sucrose is equal to the mass of sucrose divided by molar mass of sucrose.

Q: There is a 12 M aqueous HCl solution in the stock room, but a 1.0 M solution is required for an…

A: Given, a 12 M aqueous HCl solution in the stock.we are askesd to calculate the volume of stock…

Q: Calculate the number of grams of unknown solute (MW = 56.105 g/mol) in 250.0 mL of a 0.169 M…

A: Answer Option A) 2.37 g

Q: Calculate the molarity of each solution. 27.33 g C6H12O6 in 1.23 L of solution           36.8 mg…

A: Given mass of glucose = 27.33 g Molar mass of glucose = 180 g/mol Number of moles of glucose =…

Q: An aqueous solution of an acid is 1.331 m. What is the molarity of the solution? The density of the…

A: molality(m): it is defined as the no. of moles dissolve in per kg of solvent. Molarity9M): It is…

Q: A 373-mL sample of a 0.481-M CaCl2 solution is left on a hot plate overnight; the following morning,…

A: The objective of this question is to find out the volume of water that evaporated from the CaCl2…

Q: If 52.00 ml of 0.500 M CaBr 2 solution is added to  128 ml of 0.320 M solution of KCl solution, what…

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Q: What mass of cobalt III hydroxide, Co(OH)3 is needed to make 1.2 liters of a 0.21 M cobalt III…

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Q: A student prepared a standard copper solution by combining 6.37 mL of stock 0.261 mol/L copper(II)…

A: When a solution of Concentration C1 and volume V1 is diluted by adding water to a final volume V2…

Q: grams of Ca(NO2)2 is needed to make 800. mL of a 2.00 M Ca(NO2)2 solution

A: • 211.3424 grams of Ca(NO2)2 is needed to make 800. mL of a 2.00 M Ca(NO2)2…

Q: What mass of cobalt III hydroxide, Co(OH)3 is needed to make 1.2 liters of a 0.21 M cobalt III…

A:

Q: How many milliliters of a 0.7077 M HCl solution are required to neutralize 7.89 g of Mg(OH)2? Molar…

A: Interpretation -  To determine the how many  milliliters of a 0.7077 M HCl solution are required to…

Q: Consider the reaction: Li2S(aq) + Co(NO3)2(aq) →  2 LiNO3(aq) + CoS(s) What volume (in mL) of a…

A: