A student determined the molarity of chloride ion in an unknown calcium chloride solution. The student diluted a 50.00 mL sample of the original unknown calcium chloride solution to 500.00 mL in a volumetric flask. After passing a 100.00 mL sample of the diluted solution through the anion exchange resin, 42.50 mL of 0.0100 M hydrochloric acid were required to titrate the elutant a) What is the molarity of the chloride ion in the 100 ml sample of the diluted sample b) What is the molarity of the the chloride ion in the original unknown calcium chloride solution c) What is the molarity of calcium ion in the original unknown calcium chloride solution assuming the solution contained only calcium chloride

Q: Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of…

A: We calculate normality of acid and base then use this formula N1V1 = N2V2

Q: A 25.00 mL volume of 1.637 M sulfuric acid is titrated with potassium hydroxide. At the equivalence…

A: Molarity = Moles of solute/Volume of Solution(in L) Moles of Solute = Molarity x Volume of…

Q: Q7) Silver jewellery is usually made from silver and copper alloys. The amount of copper in an alloy…

A: Given that  The finest quality alloy is sterling silver, which is 92.5% silver by mass. Mass of…

Q: You have 2.50 L of an acetic acid stock solution with unknown concentration.  You first dilute…

A: Let the concentration of the unknown acetic acid stock solution be “C1” M or mol/L.   Given, You…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Answer  In the titration reaction of oxalic acid and sodium…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Given data is as follows: The mass of oxalic acid = 237 mg = 0.237 g The volume of distilled water =…

Q: It is desired to neutralize a solution X that contains a mixture of potassium chloride and…

A: The solution contains several steps.Explanation:Step 1:Step 2: Step 3: Step 4:

Q: 9.15 mL of 0.119 M N

A: Molarity is the number of moles of solute dissolved in per liter of solution. It is denoted as M.

Q: mg of OXallo acid (H,C,04), a diprotic acid that can be purchased inexpensively in high purity, and…

A:

Q: A 21.88 mL portion of a 0.379 M solution of hydrochloric acid, a monoprotic acid, is to be titrated…

A: Here we are required to find the volume of KOH required to reach the equivalence point.

Q: ou are given a sulfuric acid solution of unknown concentration.  You dispense 10.00 mL of the…

A: Titration is one of the most common method of qualitative analysis of substances given. It is done…

Q: A 4.500-g sample containing sodium bicarbonate (NaHCO3, 84.01 g/mol) and other substances is…

A: We will use the balanced neutralization reaction to find out the moles of NaHCO3, that are getting…

Q: A 50.0 mL sample of the hydrochloric acid solution is titrated with 0.250 M potassium hydroxide…

A: We have 50.0 mL sample of the hydrochloric acid solution , titrated with 0.250 M  KOH solution .…

Q: The flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains…

A:

Q: An impure sample of potassium hydrogen phthalate (KHP) was titrated to determine the percent…

A: We will use stoichiometry of the reaction to get the answer.

Q: Suppose you are titrating an acid of unknown concentration with a standardized base. At the…

A: Initial volume reading of the burette = 2.31 mL Final volume reading of the burette = 22.53 mL…

Q: An analytical chemist weighs out 0.123 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: A 35.00 mL volume of formic acid is titrated with 0.1428 M potassium hydroxide (KOH). If 24.39 mL…

A: Given: The concentration of potassium hydroxide (KOH)=0.1428 M The volume of potassium hydroxide…

Q: You dissolve a 0.553 g sample of an unknown monoprotic weak acid in water to a total volume of 20.0…

A: At equivalence point models of acid are equal to moles of base . So first we would calculate models…

Q: Titration of a 25.00 mL sample of acid rain required 12.4 mL of 0.009879 M NaOH to reach the end…

A: Volume of sulphuric acid,V1 = 25.00mL Volume of NaOH,V2 = 12.4mL Concentration of NaOH,M2 =…

Q: You have 2.50 L of an acetic acid stock solution with unknown concentration.  You first dilute…

A:

Q: Suppose you are titrating an acid of unknown concentration with a standardized base. At the…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: A student titrates 20.00 mL of an unknown HCI solution with 32.00 mL of a 0.6450 M Ca(OH) solution.…

A:

Q: the concentration of the Sodium hydroxide solution.

A:

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: An analytical chemist weighs out 0.127 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:-analytical chemist weighs = 0.127 gMolarity = 0.1800MV = 9.3 mLCalculate molar mass of the…

Q: A chemistry student weighs out 0.0310 g of phosphoric acid (H, PO,), a triprotic acid, into a 250.…

A: Given values-> Weight of H3PO4 = 0.0310 gm Volume of H3PO4 = 250 ml Molarity of NaOH= 0.1900 M

Q: A 31.0 mL sample of zinc hydroxide was neutralized by 35.7 mL of 0.490 M chromic acid.  What was the…

A:

Q: An analytical chemist weighs out 0.193 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: A 25.00 mL sample of acetic acid (CH3COOH) is titrated to the equivalence using 31.08 mL of 0.1978 M…

A:

Q: You weighed and dissolved 1.400g of sodium carbonate into a 100.0 ml volumetric flask. If a 10.00ml…

A: The number of moles of sodium carbonate and molarity of solution is calculated using the mass and…

Q: A chemistry student weighs out 0.0917 g of citric acid (H₂CH₂O₂), a triprotic acid, into a 250. mL…

A: Given : mass of H3C6H5O7 = 0.0917 g And concentration of >NaOH = 0.1200 M Since H3C6H5O7 is a…

Q: You have been provided with a 2.08 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown…

A:

Q: An analytical chemist weighs out 0.181 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Let the diprotic acid be H2A. The reaction between the diprotic acid and NaOH is shown as: H2A +…

Q: By titration it is found that 35.7 mL of 0.101 M NaOH(aq) is needed to neutralize 25.0 mL of…

A: The concentration of the HCl solution after neutralisation with sodium hydroxide is determined as,

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.