A student wants to prepare a solution of chromium(II) chloride with a known molarity. How many grams of CrCl2 must be weighed out to prepare 100. mL of a 0.233 M aqueous solution of the salt?

Q: A 23.5 g sample of KI was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A: The question is based on the concept of molarity.   molarity is a method of expressing concentration…

Q: Iron(II) can be oxidized to iron(III) by dichromate ion, which is reduced to chromium(III) in acid…

A: From given  Initially with the data , the reaction is given and from the reaction number of moles of…

Q: A chemist prepares a solution of magnesium chloride by dissolving 0.25 g of MgCl2 in 50.00 mL of…

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Q: Use the References to access important values if needed for this question. How many grams of…

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Q: In the laboratory you dissolve 23.4 g of chromium(II) acetate in a volumetric flask and add water to…

A: Molarity is defined as the number of moles of solute dissolved per liter of the solution. Molarity,…

Q: Calculate the mass, in grams, of nickel(II) bromide that must be added to a 300-mL volumetric flask…

A: Details

Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: A 9.44 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

A: Given that : The mass of the sample = 9.44 g The volume of barium hydroxide = 29.4 mL The molarity…

Q: A 23.5 g sample of KBr was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A: The question is based on the concept of molarity.  molarity is a method of expressing concentration…

Q: In a household ammonia, there is 4.25 g of NH3 in 500 mL of solution. Express the said concentration…

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Q: Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride:…

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Q: A student wants to prepare a solution of chromium(III) nitrate with a known molarity. How many…

A: Given data, Volume of Cr(NO3)3 solution (v) = 500 mL = 0.5 L Concentration of Cr(NO3)3 solution (M)…

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: A 7.92 mL sample of MgCl2 aqueous solution was diluted to a volume of 27.3 mL. If the chloride ion…

A: Given,volume of original MgCl2 aqueous solution = 7.92 mLVolume of MgCl2 solution after dilution =…

Q: 4. You have a solution of 0.2064 M cobalt(II) chloride. (a) How many moles of solute are contained…

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Q: You have 15 mL of a 0.25 M NaCl(aq) solution. What volume should you dilute it to in order to obtain…

A: Given: The initial volume (V1) of NaCl (sodium chloride) solution is 15 mL The initial molarity (M1)…

Q: 20.00 mL of a 0.30 M potassium phosphate solution is combined with 20.00 mL of a 0.40 M solution of…

A: 2K3PO4 + 3CaCl2 ----> Ca3(PO4)2 + 6KCl

Q: A 10.00 mL sample of 0.200 MHCl(aq) is diluted to a total volume of 100 mL. Calculate the molarity…

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Q: A 14.5 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…

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Q: What is the concentration of hydroxide ions in the Solution formed when 4.00 g of Mg(s) react with…

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Q: What mass of Ca(OH)2 is required to react completely with a 25.00 mL sample of  0.1234 M HCl(aq)?

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Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 475.0 mL of 0.350 M barium chloride…

A: Answer:- This question is answered by using the simple concept of calculation of resultant…

Q: How many grams of calcium iodide, CaI2, must be dissolved to prepare 300. mL of a 0.154 M aqueous…

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Q: What mass (grams) of sodium phosphate is required to precipitate all silver ions from 67 mL of a…

A: Given: Concentration of silver nitrate i.e. AgNO3 = 0.466 M Volume of AgNO3 solution = 67 mL = 0.067…

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0 g…

A: To determine the molarity (M) of a solution, you can use the formula:M In this case, you're given…

Q: A solution contains 32.929 mL of 1.436 M Ca(OH)2 (aq). How many moles of hydroxide ion are present…

A: Ca(OH)2 dissociates completely in water into component ions as: Ca(OH)2 (aq)  ------->  Ca2+ (aq)…

Q: A reaction occurs when nitric acid (HN O 3 ) is mixed withan aqueous solution of potassium hydrogen…

A: The net ionic equation and  the ionic equation are not same. Ionic equations or half equations…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 567 mg of chloride…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: A student finds that it takes 46.16 mL of 0.2915 M NaOH to titrate 20.00 mL of sulfuric acid…

A: The reaction between Sulfuric acid (H2SO4) and Sodium hydroxide(NaOH) is given as:H2SO4 + 2 NaOH →…

Q: Calculate the molarity of 110.0 grams of calcium chloride in a total of 500.0 mL of aqueous…

A: Given, mass of calcium chloride = 110.0 g  we know, molar mass of calcium chloride(CaCl2) = 110.98…

Q: A potassium iodide solution is made by mixing 7.368 grams of potassium iodide and mixing it into…

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Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 33.0 mL of 0.460 M Cd(NO3)2 solution?

A: Volume of solution = 33mLMolarity of solution = 0.460 MMass of NaOH to precipitate Cd = ?

Q: Suppose 63.5g of copper(II) acetate is broken down in 350. mL of a 0.70 M solution of sodium…

A: Answer:Molar concentration of any ion in solution is:Molar mass of copper acetate is 181.63g/mol

Q: A solution of potassium permanganate was titrated by adding 28.75 mL of the solution to a solution…

A: The question is based on the concept of quantitative analysis . we need to calculate concentration…

Q: A solution of 300.0 mL of 0.150 M Nickel (II) sulfate is mixed with a solution of 100.0 mL of 0.200…

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Q: How much solvent must be added to 25.0 mL of a 10.0 M HBr(aq) solution to form a 4.00 M HBr(aq)…

A: Let V Volumn is added

Q: Calculate the molarity of Cl– in 150.0 mL of aqueous solution that contains 5.07 g of zinc chloride

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Q: What concentration of Zn is present in solution when 5.93 g of zinc metal is used to displace…

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Q: How many moles of the nitrate anion, NO3-1, are there in a 0.015 L sample of 0.15M Pb(NO3)2(aq)…

A: Given, the volume of solution =0.015 LConcentration of Pb(NO3)2(aq) =0.15 Mwe are asked to calculate…

Q: the laboratory, a student dilutes 28.1 mL of a 8.85 M hydrobromic acid solution to a total volume of…

A: In this question, we will determine the concentration of dilute solution.  You can see the whole…

Q: What mass of Na2SO4 is required to precipitate all of the lead cations found in an 18.5 ml sample of…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.