Pre- Lab Questions
1. Using your textbook or a handbook, look up the formula and structure of potassium hydrogen phthalate (KHP) used to standardize the solution of NaOH in this experiment. Calculate the Molar Mass of KHP.
Molar Mass= 204.22 g/mol
Unknown Indicators, Acids, and Buffers
If we knew what it was we were doing, it would not be called research, would it? – Albert Einstein In the following three experiments, you will design your own experiments. We will explain the general problem — the analysis of an unknown — and give you a
Titration Analysis of Vinegar
Student: Araik Movessian
Teacher: Tijana Knezovic
Purpose and Introduction:
In this experiment the question of “what is the molar concentration of acetic acid in a sample of vinegar?” was answered via titration using a standard so
Vinegar was discovered around 5000 BC and it is documented to have been used by Hippocrates who has used vinegar as a medicine for wounds. Vinegar has many uses, although the main use for vinegar has been for treatment of wounds. It is also been commonly used a
The purpose of this experiment is to use Volumetric Analysis to determine the concentration of acetic acid in white vinegar.
The concentration is a measurement of relative amounts of solute and solvent. There are many diverse ways of expressing concentration but the most
Acid Determination of Vitamin C
Tablets and Salt Solutions
The purpose of this lab was to use acid-base titrations to find the mass percent of ascorbic acid in a Vitamin C tablet. A known concentration of s
Investigation 8.4- Titration Analysis of Vinegar
Prediction: We predict that the amount concentration of acetic acid in a sample of vinegar is 0.83 mol/L.
VCH3COOH (aq) = 10.00 mL
VNaOH (aq) = ?
CCH3COOH = 0.83 mol/L
CNaOH (aq) = 0.145 mol/L
Sodium hydroxide 100 mL
Practical 3. Titration of a weak acid (acetic) with sodium hydroxide.
The laboratory staff have made up a solution of acetic acid, but have forgotten to label the stock bottle. You need some 0.1 M acetic acid for a class practical. Using titration determine the molar concen
Analysis of Commercial Bleach Lab
In this experiment, the amount of sodium hypochlorite in a commercial bleach will be determined by reacting it with sodium thiosulfate in the presence of iodide ions and starch. A solution of sodium thiosulfate of known concentration will be added to
Acids & Bases
Often we want to determine the concentration of a solution. One way to do so is to carrying out an analytical procedure known as a titration. During a titration a carefully measured volume of the solution with the unknown concentration (called the anal
Titration is a volumetric analysis technique used to find the concentration of an unknown substance. There are several types of titration but the one used for this experiment is called acid-base titration as the substance we are titrating is acidic. Acid-base titrations are based on th
The Determination of Acid Constant Ka
When an acid or base dissolves in water, a certain percentage of the acid or base particles will
break up, or dissociate, into oppositely charged ions. The Arrhenius theory defines an acid as a compound that can dissociate in water to yield hydrog
Lab Titration Curve
Determine the concentration of unknown acid solution.
Neutralization is a reaction of an acid with a bases to produce a salt and water. For example, the reaction of the strong acid HCl with the strong base NaOH produces the salt sodium chloride and
The aim of this experiment was to determine which of the samples of vinegar if any had been watered down, to complete this task a sample of commercial vinegar was tested twice using titration and an average was taken of the two samples to give a base line to compare the potentially tampere
From Wikipedia, the free encyclopedia
(Redirected from Back titration)
Not to be confused with the mathematical notion of tetration.
This article is about volumetric titration. For other uses, see Titration (disambiguation).
1. Using the information provided in the Introduction and your observations from Part 1, hypothesize as to the type of electrolyte the following solutions would be. Justify the hypothesis from a chemical standpoint.
a. Aqueous Sodium Hydroxide—NaOH (aq) is a very strong
TEXT BOOK OF
For 2nd year Medical Laboratory Technician Course
S. Srinivasa Rao, B.Pharmacy,
Jr. Lecturer in M.L.T., Alluri Sri Rama Raju Govt. Junior College, Shanthi Nagar, Khammam.
S. Kamalakar Rao, M. Pharmacy
The Titration of Acids and Bases
This experiment will allow you to gain practical experience in the preparing standard solutions, using a pipette and a buret, and performing standard titrations. You will use this experience to experimentally dete
Differences between acids and bases
An acid-base reaction is based on the reaction involving the ionization of water
H2O -> H+ + OH-
This means that water can break apart into a hydrogen ion and a hydroxide ion. These two ions can also join together to form a water molec
The purpose of this lab is to use volumetric analysis to determine the concentration of unknown substances. A sodium hydroxide solution is standardized to assist in finding the concentration of an acetic acid. An indicator must