What mass of KNO 3 is required to make 250. mL of a 0.318 M solution?  Report your answer to 3 significant figures.

Q: hat volume of a 2.50 M HCl solution should you use to prepare 2.00 L of a 0.100 M HCl solution?…

A: Molarity can be determined using the formula : Molarity = Moles of Solute/Volume of Solution(in L)…

Q: An aqueous solution of potassium hydroxide is standardized by titration with a 0.171 M solution of…

A: Given 26.7 mL of 0.181 M HClO4  20.3 mL of KOH For neutralization,  we use the formula M1V1= M2V2 M1…

Q: You place 5.0 g of Ca(NO3)2 (164.1 g/mole) into a 250.0 mL volumetric flask and fill it. Calculate…

A: Step 1 Find the molarity of the given Ca(NO3)2 solution

Q: In the lab, a student makes a solution of CaCl 2 by dissolving 9.0 grams of solid in 425 mL of…

A: We have given that  Mass of CaCl2 = 9 gram  Volume of solution = 425ml = 0.425L  We know that…

Q: A student needs to prepare a 500.0 mL solution of 0.150 M Zn(NO3)2. How many grams of Zn(NO3)2 is…

A:

Q: Exactly 6.21 g of MgCl2 (molar mass = 95.2 g/mol) was dissolved in water.  An analysis indicated…

A:

Q: Enter your answer in the provided box. Calculate the concentration (in molarity) of an NaOH solution…

A: Number of moles of solute in a solution is equal to product of Molarity of solution and Volume of…

Q: You have 500 mL of a 0.125 M HCl(aq) solution and you want to dilute it to exactly 0.100 M. How much…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the…

Q: An aqueous solution of perchloric acid is standardized by titration with a 0.131 M solution of…

A:

Q: Imagine you transferred 5.00 mL of 1.75 M HCl solution into an empty 200.00 mL volumetric flask then…

A: Given is Initial Volume of HCl solution = V1 = 5 mL Molarity of HCl solution = M1 = 1.75 M Final…

Q: What is the final concentration of the diluted solution if a student was asked to prepare a new HCl…

A: Given: Concentration of stock HCl solution = 12 M Volume of stock solution taken = 0.50 mL  And the…

Q: You wish to make a 0.399 M nitric acid solution from a stock solution of 6.00 M nitric acid. How…

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

Q: You wish to make a 0.175 M hydrobromic acid solution from a stock solution of 6.00 M hydrobromic…

A: We know that moles of solution before and after dilution remains same. Given data: Molarity of stock…

Q: What volume of a 0.243 M hydrochloric acid solution is required to neutralize 20.7 mL of a 0.175 M…

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

Q: You were tasked to prepare nitric acid with a concentration of 1.64 M. What will be the volume (in…

A:

Q: You wish to make a 0.149 M hydrochloric acid solution from a stock solution of 6.00 M hydrochloric…

A: Calculate the number of moles of HCl in the final dilute solution of 0.149 M and 50.0 milliliters.

Q: volume

A:

Q: Milk of magnesia, an over-the-counter antacid liquid, is a suspension of magnesium hydroxide in…

A: Given, Mg(OH)2 + 2 HCl → MgCl2 + 2 H2O mass of Mg(OH)2 added = 1.15 g  Concentration of HCl solution…

Q: 30.00 mL of nitric acid (HNO3) with an unknown concentration was placed into an Erlenmeyer flask.…

A: Given, the Volume of nitric acid = 30.00mL the volume of Ca(OH)2 = 25.36mL molarity of Ca(OH)2 =…

Q: You wish to make a 0.192 M perchloric acid solution from a stock solution of 12.0 M perchloric acid.…

A:

Q: Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to…

A: Given, Molarity of barium hydroxide solution = 0.281 M = 0.281 mol/L Volume of barium hydroxide…

Q: What mass of Mg(OH)2 in grams are in 215 mL of a .0350 M solution of Mg(OH)2?

A: Given  Molarity of solution = 0.0350 M Volume of solution = 215 mL   = 0.215 L Mass of Mg(OH)2…

Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.133 M solution of…

A:

Q: Milk of magnesia, an over-the-counter antacid liquid, is a suspension of magnesium hydroxide in…

A: Given, Mass of Mg(OH)2 = 1.13g. Volume of HCl = 226.2mL. Molarity of HCl = 0.1746M. The moles of…

Q: Many common titrations involve the reaction of acid and base. If 24.74 mL of 0.503 M H2SO4solution…

A:

Q: In the laboratory a student combines 46.6 mL of a 0.307 M iron(III) fluoride solution with 22.4 mL…

A: GIVEN: The Volume of Iron(III) Fluoride = 46.6 mL The concentration of Iron(III) Fluoride =0.307 M…

Q: The concentration of SO42– ions in a 45.0 mL sample of seawater is determined by adding a solution…

A: Given information: Mass of barium sulfate = 0.315 g Volume of sample = 45.0 mL or 0.045 L

Q: You wish to make a 0.338 M hydrochloric acid solution from a stock solution of 12.0 M hydrochloric…

A: Concentrated solutions upon addition of water gets diluted to lower concentrations. The dilution of…

Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 375.0 mL of 0.350 M barium chloride…

A: Given : Molarity of iron (III) chloride (FeCl3) =0.250 M  Volume of iron (III) chloride…

Q: student found that it required 46.37 mL of a 0.1109 M NaOH solution to neutralize 20.00 mL of an…

A: The question is based on the concept of titrations.   we are titrating  a weak phosphoric acid with…

Q: molarity

A:

Q: The molarity of an aqueous solution of hydrobromic acid, HBr , is determined by titration with a…

A: The equation to find the unknown value is given by, M1V1=M2V2 where M is the molarity and V is the…

Q: What is the molarity of a solution prepared by taking 6.864 g of potassium permanganate (KMNO 4) and…

A:

Q: 72.5 mL of water was added to 167.5 mL of O.237 M CaCl2 solution. Assuming the volumes are additive…

A:

Q: An aqueous solution of potassium hydroxide is standardized by titration with a0.174 M solution of…

A: Given that  Aqueous solution of Potassium hydroxide is standardized by titration with a 0.174 M…

Q: A student needs to make 250 mL of 1.4 M Fe(NO3)3 by dilution. How many milliliters of a 5.0 M…

A: Given data:  Initial molarity of Fe(NO3)3 (M1) is 5.0 M The final volume of Fe(NO3)3 (V2) is 250 mL.…

Q: You have 250. mL of 0.125 M HCl. Using a volumetric pipet, you take 50.00 mL of that solution and…

A:

Q: You have 250. mL of 0.125 M HCl. Using a volumetric pipet, you take 50.00 mL of that solution and…

A:

Q: A student found that it required 44.7 mL of a 0.1028 M NaOH solution to neutralize 20.0 mL of an…

A: Phosphoric acid is a triprotic acid. Meaning it dissociates to give three protons . It is a weak…

Q: In an experiment, a student combines 75.0 mL of a 0.190 M iron (III) chloride solution with 125.0 mL…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

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

A: Hydrogen chloride reacts with magnesium hydroxide to form water and magnesium chloride. The equation…

Q: A student weighs out a 11.1 g sample of MnCl2, transfers it to a 500. mL volumetric flask, adds…

A: Given,mass of MnCl2 = 11.1 gVolume of the solution = 500 mL = 0.5 LMolarity of MnCl2 solution =…

Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.109 M solution of…

A:

Q: 250 mL of a 1.9 M Mg(OH)2 solution is added to a beaker.  How many moles of Mg(OH)2 were added?  How…

A: Molarity is a way of expressing concentration. It is defined as moles of solute present per liter of…

Q: You have 250. mL of 0.106 M HCl. Using a volumetric pipet, you take 50.00 mL of that solution and…

A: Any solution’s concentration provides the knowledge of solute’s amount present into definite amount…