[Topic: Dilution] A concentrated solution of 15% w/v KOH solution is available. How would we prepare 20 L of a 0.1% w/v KOH solution?

Q: 5. Determine how many grams of K2Cr207 would be needed to make 250 mL of a 0.10M solution. 6. How…

A: Molarity :-  The number of moles of solute present in dissolved state in one litre of solution is…

Q: Aqueous NaOH can be purchased at a concentration of 1.0 M. How would you use this concentrated…

A: Using the Dilution equation, a dilute solution of NaOH will be prepared using the 1.0 M NaOH…

Q: What is molarity of a solution prepared by dissolving 4.20 g NaF in enough water to make 0.400 L of…

A: Calculate the number of moles (n) of NaF. The molar mass of NaF is 41.98 g/mol.

Q: Calculate the volume percent of 418 mL of acetone in enough water to give 1.23×103 mL of solution.…

A: Given : Volume of acetone = 418 mL And volume of solution = 1.23 X 103 mL = 1230 mL

Q: How would you make 250ml 56% NaCl solution? O 112.5g NACI O 82.4g NaCI 33.5g NaCl 140g NaCI

A: It is given that 250 mL of 56% solution of NaCl needs to form and the mass of NaCl required needs to…

Q: How many grams of benzoic acid (C6H5COOH) are contained in a 75.0 mL solution at 0.340 M…

A: First determine the moles of benzoic acid in given solution.

Q: What volume of a 1.20 mol/L stock solution would you use to make 1.00 L of a 0.800 mol/L solution?…

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Q: What is the molarity of a solution prepared by diluting 5.00 mL of concentrated HNO3 to 0.250 L

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Q: How many moles of I2 are in 9.062 grams of C2H9I2NO (PVP-I Solution) and what is the Mass Percent of…

A: The mass of C2H9I2NO (PVP-I Solution) given in the question = 9.062 grams Atomic mass of different…

Q: What is the volume of a 20% methyl solution that contains 15mL of methyl? a. 6 ml of methyl b. 4 mL…

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Q: How many milliliters of a 0.1% (w/v) thimerosal topical solution should be used to prepare one-half…

A: Concentration is defined as amount of solute present per unit amount of solvent or solution.…

Q: 1. How many ml of sulphuric acid are required to make 1.5L of a 32% (v/v) solution? 2. How many mls…

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Q: What is the concentration of a solution formed by diluting 5.0 mL of a 3.2 M glucose solution to…

A: The equation to calculate the known values from unknown values are given by M1V1=M2V2 where M is the…

Q: What is the molarity of a solution made my diluting 0.37 L of 2.47 M NaCl solution to 1.13 L?

A: 0.37 L of 2.47 M NaCl solution is diluted to 1.13 L solution.We have to calculate the molarity of…

Q: An aqueous solution that contains 425 ppm of potassium nitrate (KNO3) is being used in the lab.…

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Q: How many grams of phenol should be used to prepare 240 g of a 5% (w/w) solution in water?

A: Formula used :-  W/W % = (Mass of phenol ÷ Mass of solution )×100%

Q: If 25 g of sodium chloride (NaCIO3) are dissolved in 100 g of water at 70°C, how would you describe…

A: (M/M )percent = (Mass of  solute / Mass of solution )×100

Q: How much LiBr must you dissolve in water to prepare 20

A: Molarity:  number of moles of solute present in 1 litre solution  M = n/V  Where  n = moles =…

Q: How much ethyl alcohol is in 500mL of a can of beer which is 6.7% ABV?

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Q: Which solute would you expect to be most capable of being dissolved in water?…

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Q: How much NaCl should you use to make 250 ml of a 5% w/v solution?

A: The weight by volume percentage is the mass of the solute upon volume multiplied by 100 percent.…

Q: W.H.2;How much Cl ions are contained in 5 L solution 28 ppm? K

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Q: How would you prepare 750 g of an aqueous solution that is 2.5% NaOH by mass?

A: Given concentration of NaOH Solution is 2.5% by mass.

Q: How much mL of Acetone is needed to make 100mL of an aqueous 30% (v/v) Acetone solution? How much mL…

A: Given,  Volume of the solution = 100 mL  Volume percent of acetone = 30% How much mL of Acetone is…

Q: A student is asked to make up 100.0 g of a 26 % (w/w) sucrose solution. The students weighted out 26…

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Q: What is the mass percent of a solution made by adding 75.3 grams of KCl to 500 mL of water? (The…

A: Given: Mass of KCl = 75.3 g Volume of water =  500 mL Density of water = 1.00 g/mL

Q: 1. What is the molarity of a solution made by dissolving 12.5 g NaCl up to 1 L of H2O?

A: Moles of NaCl is calculated as,

Q: You need to prepare a solution of glycerol ( CH2OH-CHOH-CH2OH) in 100.0 g of water, so the…

A: In this ques, we have given a solution of glycerol and water, we have to calculate the mass of…

Q: How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution?

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Q: How much calcium nitrate has to be added to 1000  L  of solution to provide 190  ppm   Ca2+  if the…

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Q: You were tasked to make a 1-L solution of 0.5 M of NaOH from a 2.0 M NaOH stock solution. How much…

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Q: How    do    you    prepare    25    mL    of    0.4%    (w/v)    cesium    chloride?

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: How much volume of 1.6 M NaOH solution can be made by diluting 74 ml of 4 M NaOH.

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Q: How would you prepare 100 ml of a 5 uM solution of ammonium nitrate (NH4NO3; Formula weight = 80…

A: The answer is given below:

Q: 1.50 L of a hydrogen peroxide solution produces 16 L of oxygen gas at STP. a. Calculate the…

A:

Q: How much distilled water is needed to dilute 7.5 mL of 0.1 M NAOH to a concentration of 15 mM? O…

A: If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of molarity M2…

Q: How many mL of H20 must be added to 25.0 of NAcl (solute) to prepare a 15% (v/v) NAcl solution?

A: Since the units of NaCl solute is not given. Hence I'm assuming it to be 25 mL of NaCl solute.

Q: How many grams of NaBr would be needed to prepare 700 ml of 0.230 M NaBr solution?

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Q: How many grams of acetic acid, CH3COOH, would you use to make 10.0 L of a 0.10 M aqueous solution of…

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Q: calculate the concentration in (m/v) of 100.0 g of nano3 dissolved in water for a final volume of…

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Q: 2.7 moles of NaOH are dissolved in 1.75 L of H2O.  What is the solution concentration in Molarity…

A: Given, moles of NaOH = 2.7 mol Volume of water = 1.75 L

Q: What would be the final concentration of a solution made by diluting 100 mL of a 24.0 mg/L…

A: Since Phosphorous  exists as P4 molecule  therefore GMW = 31×4=124 gmol-1 Concentration  can be…

Q: How many moles of NaCl are contained in 250. mL of a 0.25 M solution?

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Which solution is most concentrated? O.8 moles per .45 L O 5 moles per.6 L O 1.2 moles per .39 L 10…

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Q: how much ml of ethanol is needed to make 200ml of an aqueous 15% (v/v) solution?

A: Given :-  % (v/v) of solution = 15%  Volume of solution = 200 mL  To calculate :-  Volume of ethanol…

Q: What volume (in mL) of concentrated hydrochloric acid is necessary to prepare 10 mL of 1:1 (v/v)…

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Q: Which would produce a more concentrated solution? Solution A: 0.791 moles dissolved in 1.23 L OR…

A: Given Solution A: 0.791 moles dissolved in 1.23 L Solution B: 2.42 moles dissolved  in 3.62 L.

Q: How many moles of NaCl need to be dissolved in 2.50 L of water to create a 0.750 M solution of NaCl

A: 1.875 moles