A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs out 51 mg of oxalic acid (H2C2O4), a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in 250 mL of distilled water. The student then titrates the oxalic acid solution with her sodium hydroxide solution. When the titration reaches the equivalence point, the student finds she has used 19.2 mL of sodium hydroxide solution. Calculate the molarity of the student's sodium hydroxide solution.

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

A: In the given question we have to calculate the Molarity of NaOH solution,  first of all, we have to…

Q: An analytical chemist weighs out 0.054 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: An analytical chemist weighs out 0.203 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: The point that appears in the titration curve, where the number of moles of an acid and the number…

Q: An analytical chemist weighs out 0.032 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: A chemistry student weighs out 0.186 g of sulfurous acid (H, SO,), a diprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.146 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.155 g of lactic acid (HC,H,O3) into a 250. mL volumetric flask and…

A: Lactic Acid is:- HC3H5O3 The molar mass of lactic acid is :- 90.08g/mol Weight of Lactic acid used =…

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: An analytical chemist weighs out 0.047 g of an unknown monoprotic acid into a 250 mL volumetric…

A: We have to calculate the molar mass of the unknown acid.

Q: Suppose a student needs to determine the concentration of a NaOH solution. He performed a…

A: First, we need to calculate the number of moles of benzoic acid used in the titration. The number of…

Q: In a titration 36.7 mL of HBr solution is put in a flask with a few drops of phenolphthalein and…

A: given data are - volume of acid = V1 = 36.7 mL  volume of base = V2 =51.4 ml concentration of base =…

Q: You have been provided with a 38.3 mL sample of hydrochloric acid (HCl) of unknown concentration.…

A: For an acid-base reaction the equivalence point is where the moles of acid and the moles of base…

Q: An analytical chemist weighs out 0.165 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: The unknown acid is triprotoic acid, hence the balanced chemical reaction between the acid and NaOH…

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.450 g sample of a weak monoprotic acid,…

A: Answer:- This question is answered by using the simple chemical reaction between acid and base. Then…

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

A:

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

A: We have to calculate the Molarity of NaOH solution.

Q: Lactic acid is a monoprotic acid with the formula C3H6O3. You have a 25.00 mL sample of lactic acid…

A: The concentration of acids is determined by a neutralization reaction with a base of known…

Q: concentrated sulfuric acid. The sulfuric acid reacts with the copper(II) carbonate to produce a blue…

A: The question is based on reaction Stoichiometry. we have to determine the concentration of copper…

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

A: First, we need to calculate the number of moles of oxalic acid (H2C2O4) used. The molar mass of…

Q: An analytical chemist weighs out 0.244 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: A chemistry student weighs out 0.0955 g of ascorbic acid (H,C,H,O6), a diprotic acid, into a 250. mL…

A: Molar mass of ascorbic acid = 176.12 g/mol mass o f ascorbic acid = 0.0955 g Number of moles of…

Q: An analytical chemist weighs out 0.102 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.375 g sample of a weak monoprotic acid,…

A: To a weak acid when strong base is added a buffer solution is formed. pH of the buffer solution can…

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: What was the molarity of the KOH solution

A: Molarity = number of moles/volume of solution (in L)   Number of moles = molarity x volume

Q: An HCl solution was titrated using sodium carbonate as the primary standard and methyl red as the…

A: The balanced chemical equation for the reaction between HCl and Na2CO3 is: 2HCl + Na2CO3 → 2NaCl +…

Q: A chemistry student weighs out 0.173 g of ascorbic acid (H₂CH₂O), a diprotic acid, into a 250. mL…

A:

Q: You have been provided with a 2.13 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown…

A:

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

A: Here we are required to find the Molarity of sodium hydroxide solution required for standardization…

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

A: Given: Mass of oxalic acid = 176 mg Volume of oxalic acid = 250 mL Volume of NaOH solution = 52.3 mL…

Q: In a titration experiment, 46.0 mL of 0.085 M acetic acid, CH3COOH, is titrated with the 0.250 M…

A: Axid-base titration is a useful technique for the determination of the unknown concentration with…

Q: t is time for the titration.  You measure 15.0 mL of the H2C2O4 solution with a 100-mL graduated…

A: The titration is carried out between oxalic acid solution and sodaium hydroxide solution. The…

Q: A chemistry student weighs out 0.361 g of ascorbic acid (H₂C H₂O), a diprotic acid, into a 250. ml.…

A:

Q: A titration of 38.0 mL of a sulfuric acid (H₂SO₄) solution of unknown concentration with a…

A: Given: Volume of H2SO4 (V1) = 38.0 mL Concentration of Ba(OH)2 (M2) = 1.55 M Volume of Ba(OH)2 (V2)…

Q: the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?

A:

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

A:

Q: A technician would like to standardize an unknown Ca(OH)2 solution. It takes 18.26 mL of a 0.191 M…

A:

Q: An analytical chemist weighs out 0.066 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:-analytical chemist weighs = 0.066 gMolarity = 0.1700MV = 8.4 mLCalculate molar mass of the…

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

A:

Q: Consider a titration where 0.215 M potassium hydroxide is added from a burette to 10.00 mL of…

A: The titration between a strong base, KOH, and a strong acid, HCl results in the formation of a…