Titration Lab

The mass percent of ascorbic acid in the sample is given by dividing the calculated mass of ascorbic acid (0.414060408 g) by the calculated mass of the sample (0.5500 g) and multiplying the quotient by 100%.

1. To titrate a hydrochloric acid solution of “unknown” concentration with standardized 0.5M sodium hydroxide.

Titration is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralisation, which is often indicated by a colour change. The solution called the titrant must satisfy the necessary requirements to be a primary or secondary standard. In a broad sense, titration is a technique to determine the concentration of an unknown solution. We can use the reaction to find out the molarity of the solution by measuring the product(s) that is formed.

Based on the reactions in each test tube , we

The purpose of this lab is to become more familiar with the products of different types of chemical reactions by conducting several chemical reactions and observing the changes that occurred. In addition, by performing various experiments, the observations will help in writing chemical equations, which represent the process involved in a chemical reaction. Overall, the chemical changes observed throughout can determine the products that are formed from the reactants. In chemical reactions, substances that are referred to as reactants produce other substances called products. There are several ways to determine that a chemical reaction has occurred, and which type of reaction has taken place, exothermic or endothermic, which will help predict

ii. The second part of the titration series involves titration of NaOH with Hydrochloric acid (HCL). Again, three reps of titration and a blank titration have to be completed. A volumetric pipet is used to measure 10.00mL of HCL into three labeled conical flasks. Then the flasks are filled with deionized water until about the 50mL mark. A buret is

Type of Reactions We did a lab on many reactions to find the products of the reactions. We conducted four group experiments and three class experiments, following very strict safety procedures given to us by our instructor. We used goggles and aprons which were required at all times. We could not sniff any gasses or walk into clouds of smoke unless we were instructed to.

: During each reaction, something happened. During reaction 1, after adding the nitric acid a red-brown gas was created. The copper first turned green after a few minutes turned into a blue solution. Reaction 2, When acid was added a blue precipitate formed. Reaction 3, when heated the solution turned into a black precipitate.

Materials We did several different examples of chemical equilibriums using different stresses and conditions. This includes adding or removing reactants, changing temperature, or adding additional compounds. Our materials included a large variety of chemicals and equipment used to conduct our labs.

During a titration the pH of the solution will be monitored using a pH meter from that we get a titration curve. The titration curve is then used to determine the equivalent molecular weight and Ka value of the unknown weak acid, from that we are

Finally students measured twenty five milliliters of a basic solution into the third beaker, labeled beaker C, and once again tested for the pH of the solution with a pH test strip. The class then repeated the same process as aforementioned with the third solution, the class dropped

Volumetric titrimetry is the min method we used in this experiment as we need to determine the amount of NaOH needed to neutralize an acid, which in part B is KHP and in part C is vinegar. Phenolphthalein the reagent used in this experiment to determine the point of neutralization or end point. Firstly, volumetric flask needed to be cleanse with distilled water. To prepare a solution of approximately 0.1M NaOH, 2.971g of solid NaOH is weighed and dissolved in distilled water.

Titration what is that you may be asking yourself. Well a titration is a method of analyzing that will allow you determines the endpoint of a reaction and therefore the quantity of the reactants in the flask A buret is used to deliver the second reactant to the flask and an indicator or pH Meter is used to detect the endpoint of the reaction. Also just so you know a titrant is the know solution that is added and a the analyte is the unkown solution until the reactanc is complete.

The method of titration was discovered in late 1800’s by a french pioneer name Francois Antoine Henri Descroizilles. Titration is a process used to find concentration of an unknown compound. This process is used in labs to find information need in everyday life.For instance, titration is used during blood test and urine test to determine the concentration

An acid-base titration is the determination of the concentration of an acid or base by exactly neutralizing the acid/base with an acid or base of known concentration. This allows for quantitative analysis of the concentration of an unknown acid