An analytical chemist weighs out  0.149g  of an unknown diprotic acid into a  250mL  volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with  0.1400M   NaOH  solution. When the titration reaches the equivalence point, the chemist finds he has added  12.8mL  of  NaOH  solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits.

Q: A chemist weighs out 0.138 grams of an unknown diprotic acid into a 222 volumetric flask and makes a…

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

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

A:

Q: 30 mL of an unknown concentration of phosphoric acid (triprotic) was titrated with 10 mL 0.05 M…

A: We have to predict the concentration of the acid

Q: A student titrated 30.5 mL of a 3.50 grams per liter monoprotic acid with 15.0 mL of 0.10 M NaOH…

A: From the details in the question, it can be inferred that the reaction molar ratio is 1:1. Since it…

Q: A student is trying to determine the molar mass of an unknown weak, monoprotic acid. A solution of…

A:

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: A mass of 0.640 g of an unknown monoprotic acid, HA, was titrated with KOH. Given that the acid…

A: The molar mass of the monoprotic acid HA will be 151 g/mol (after rounding off).

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: A 25.0 mL volume of HCl solution of unknown concentration is titrated with a 0.154 M NaOH solution.…

A:

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

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: 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: A group of students working in a chemistry lab is planning a procedure to neutralize 25.0mL of 2.0 M…

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

Q: A chemistry student weighs out 0.0918 g of hypobromous acid (HBrO) into a 250. mL volumietric flask…

A:

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: In a titration, suppose 20.00 mL of 0.275 M oxalic acid solution required 21.72 mL of NaOH solution…

A: H2C2O4(aq) + 2NaOH(aq) -------> Na2C2O4(aq) +2H2O(l)

Q: A 15.5 mL sample of 0.215 M KOH was titrated with a weak acid. It required 21.2 mL of the acid to…

A: The Problem:Given: Volume of KOH = 15.5 mL                  ( 3 significant figures)Concentration…

Q: An analytical chemist weighs out 0.130 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: A 5.00 mL sample of 0.25 M HBr solution is titrated with 0.35 M NaOH. What volume of NaOH is…

A: We should equal equivalent of both acid and NaOH ion to volume of NaOH Equivalent =…

Q: Before performing a titration of vinegar itself, you first had to standardize the solution used to…

A: As most base solutions are secondary standardized, so we need to standardise base solutions with a…

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: A student performed the experiment "Titration of Acetic Acid in Vinegar". However, he accidentally…

A: Titration of Acetic acid with NaOH is known as neutralization reaction in which NaCl salt and water…

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

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: A tablet contains 0.5 g of magnesium hydroxide as the only basic ingredient . The tablet is analysed…

A:

Q: An analytical chemist weighs out 0.461 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: The molar mass of an unknown acid is to be calculated from the given data. Given: Mass of unknown…

Q: A student did not read the directions to the experiment properly and mixed up where to put the NaOH…

A: Acid base titration is a titration where the concentration of acid or base is determined by adding…

Q: a. What is the molarity of the titrant?  The chemist obtained a 3.150 g sample and dissolved it in…

A:

Q: For your second titration, you put 0.457 g of KHP in your flask. Pretend that the concentration of…

A:

Q: calculate

A: We will use gm equivalent of both acid and base

Q: A chemistry student weighs out 0.0377 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The solution is given below -

Q: The antacid "TUMS" was titrated using 0.3 M HCl. The buret reading was initially 2.94 mL. After…

A: Given: Initial Burette reading = 2.94 mL Final Burette reading = 21.81 mL To Find: The volume of HCl…

Q: A chemistry student weighs out 0.116 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Given  Mass of HBrO =  0.116 gram  Volume  =  250 mL  Molarity of NaOH  = 0.1600 M  Volume of NaOH…

Q: A 13.8 mL solution of 0.176 M phosphoric acid (aq) is to be titrated with 0.384 M sodium hydroxide…

A: The mathematical calculation can be explained using acidimetry and alkalimetry . From this principle…

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

A:

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 chemistry student weighs out 0.441 g of citric acid (H,C,H,0,), a triprotic acid, into a 250. mL…

A: Here we first calculate the molarity of the acid then use neutralization rule at equivalence point.

Q: An analytical chemist weighs out 0.278 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given-> Weight of diprotic acid = 0.278 gm Volume of flask= 250 ml = 0.250 L (1 L = 1000 ml)…

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

A: According to the question we have, The mass of unknown triprotic acid is given by = 0.032 g. The…

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

A:

Q: An analytical chemist weighs out 0.099 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Mass of unknown acid (m) = 0.099 g Volume of unknown acid (V1) = 250 mL  Concentration of NaOH…

Q: Determining the volume of base needed to titrate a given mass of acid A chemistry student weighs out…

A: Titration is a process that is employed in chemistry laboratories to determine the concentration of…

Q: in a titration to determine the concentration of hydronium ions in a test solution, the test…

A: Given: In a titration to determine the concentration of hydronium ions in a test solution: The test…

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…

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.