What volume of 30% H202 do you have to  dilute to make 20 mL to make a 3% H20 solution ?

Q: What is the molarity of a solution made by diluting 1.2 L of 7 M KCl with 0.8 L of water?

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Q: 4. How would you make 400ml of a 3% glucose solution?

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Q: How many mL of 2.50% (m/v) salt solution would contain 1.80 g of salt?

A: →m/v% =2.50%       Mass of solute =1.80g       Volume of solutionv=?        m/v% =Mass of…

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: How many mL of 0.400 M KCl would be required to make a 0.500 M solution of KCl when diluted to 200.0…

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Q: How many millimeters of concentrated HCl are needed to prepare 500mL of 0.25N HCl? 10.4 mL 11.4 mL…

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Q: how would you make 500ml of a .090M solution of CaCl2 from pure soild CaCl2

A: Since all the term used in the molarity are known, excluding mass of solute (CaCl2). hence, we can…

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 ml of a 0.50 M MgCl2 solution would you need to create a 100 ml solution containing 0.100 M…

A: Given: [MgCl2], M1 = 0.50 MVolume of MgCl2 solution, V1 = ??volume of Cl- solution, V2= 100ml[Cl-] ,…

Q: What volume of a 0.85M stock solution would be needed to prepare 4.5 L of a solution at 0.30M…

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Q: How would you make 100. mL of a 0.200 M solution of NaCl starting with a stock solution of 5.0 M?

A: 5.0 M solution of NaCl which has to be diluted into 0.200 M to about 100 mL.

Q: How many grams of ethanol (C2H6O) are needed to make a 0.10 m solution using 1.000 kg H2O?

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Q: What will happen (crenate or swell) to a red blood cell placed in a 5.0% NaCl solution? Explain your…

A: In this question, we will discuss about what happened when RBC cell kept inside the 5.0% NaCl…

Q: How many mL of a 28% dextrose must you dilute to 223 mL to make a 5% solution? (M,V1 = M2V2)

A: In the question, the solution of dextrose (D-glucose) is given. The initial conc. of dextrose…

Q: A student wishes to make 750 mL of 2.5M HNO3 solution from 6M stock solution. How much of the 6M…

A: The preparation of a diluted solution from a concentrated stock solution is known as the dilution.…

Q: What volume of a 2.00 M KCl solution is required to prepare 50.0 mL of a 0.150 M KCl solution? a.…

A: We can find the required volume from the stock solution by a dilution equation. The dilution…

Q: A.. .mL of 4.2 H2C204 needs to be diluted to form 750 mL of 1.4 N H2C2O4 solution * O 260 mL O 250…

A: The normality equation is given by  N1V1=N2V2 where N1 and V1 are the normality and volume of…

Q: What mass of solvent will it take to make 260 g of a 7.5% w / w solution

A: Given :-  mass of solution = 260 g  % w/w = 7.5 %   To calculate :-  mass of solvent

Q: Calculate The MASS-VOLUME PERCENT of 5g of MgCl2 to make 250mL of aqueous solution.

A: We know that ; Mass - volume percent = (Mass of Solute/volume of solution)× 100% By using this…

Q: How many grams of ammonium chloride must be down to 150 mL of water to make a saturated solution at…

A: Mass of ammonium chloride = Volume x Concentration

Q: How will you prepare 250 cm3 of a 1 M NaOH solution using NaOH pellets?

A: Given, 250 cm3 of 1 M NaOH solution  Volume = 250 cm3 = 0.25 L  Molarity = 1 M  Molar mass of NaOH…

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: What volume of 1.50 mol/L stock solution is needed to make 125 ml of a 0.60 mol/L? 1.50 ml 2.7.2…

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Q: How many mL of 17 M acetic acid is necessary to prepare 50.00 mL of 4.0 M acetic acid?

A: The volume of resulting solution is determined by using the relation M1V1 = M2V2.

Q: What mass of lithium iodide is needed to make 0.35 m solution with 1.4kg of solvent

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Q: describe how you would prepare 750 mL of a 0.65 M MgCl2 solution

A: Molarity = number of moles/volume of solution (in L)   Number of moles = mass/molar mass  So,  mass…

Q: Find the mass of iron (II) sulphate needed to prepare 250mL of 0.600mol/L solution

A: Given: Volume of solution, V = 250 mL                                    =0.250 L Molarity of…

Q: How many mols of Sulfuric Acid are in 63.5ml of a 3.0M solution

A: Volume = 63.5 ml = 0.0635 L (1L = 1000ml) Molarity = 3.0 M

Q: How many milliliters of 9.0 M H2SO4 are needed to prepare 500. mL of 0.25 M H2SO4?

A: This question is based on Dilution equation. The formula for the dilution equation is as follows:…

Q: Solute: H2SO4 Composition of Solution: mole% H2SO4 = 40 % Density, g/mL: 20 degrees: 1.681 ; 80…

A: In the question, we have a solute given which is Sulphuric acid  The molecular weight of sulphuric…

Q: many mL should you take from a 70% solution to dilute it to a 21% solution ? a. 20 mL b. 30 mL C. 50…

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Q: 20. Concentrated ammonium hydroxide is 29.0%mass ammonium hydroxide. How much of the concentrated…

A: Given information: mass % of ammonium hydroxide in solution is 29.0%. mass % of ammonium hydroxide…

Q: How much stock solution AND water is needed to dilute a 2.5M solution onto a 350mL 0.75M solution?

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Q: How many mL of 0.400 M KCl would be required to make a 0.0895 M solution of KCl when diluted to…

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Q: How much of 8 M soloution of HBr is needed

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Q: How many mL of 0.400 M KCl would be required to make a 0.0795 M solution of KCl when diluted to…

A: M1V1 = M2V2 Where, M1 = initial molarity, V1 = initial volume,  M2 = final molarity, V2 = final…

Q: You have a stock of 5.0 M NaCl. If you want to make 300.0 mL of .150 M NaCl, how many milliliters of…

A: M1= 5.0 M V1=300.0mL M2=0.150M V2=?

Q: Which solution has more acetic acid? 10.0 mL of 15% solution or 20.0 mL of 1.11 Moles solution?

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Q: How would you prepare 250.0 mL of a 0.35 M solution of NaOH using a solution of NaOH that is 6.0 M?…

A: Recall the following relation to find volume of NaOH solution        ViMi=VfMfHere,initial volume of…

Q: What volume of water is necessary to prepare a 0.10 M H3PO4 solution using 25 mL of a 10 M stock…

A: A solution consists of solute and solvent. A solute is defined as the component present in a smaller…

Q: How many mL of 0.10 M NaOH solution contain 3.0x10^-3 mol NaOH?

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Q: How many grams of sodium hydroxide are required to make 150 mLs of a 0.184 M solution?

A: Molarity of the solution is defined by the ratio of the number of moles of solvent to the volume of…

Q: 20 cm3 4.0 M potassium-chloride solution is diluted to five-fold volume with distilled water. How…

A: Given: The volume of the solution to be diluted= 20 cm3. The concentration of KCl stock solution=…

Q: Prepare 200 mL of a 5% solution of sulfuric acid using a 50% sulfuric acid solution

A: Concentration or Molarity is defined as “the mole of the solute per unit volume of the solution”. It…

Q: What volume of water is needed for 25.0 L of 0.20 M NaCl to make a 0.15 M NaCl solution?

A: When any solution gets diluted then solution's concentration gets decreased. The dilution process…

Q: What is the molarity of a 250mL solution made with 15.0g of KCl?

A: Molarity or Molar concentration is a measure of the concentration of a chemical species, in…

Q: How many mL of 0.190 M HCl solution are needed to provide 1.50 mole of HCl?   7.89 mL 127 mL…

A: We are given HCl solution whose molarity=0.190M Moles Of HCl=1.50 mol