Corrosive Base Responses And Oxidationreduction Responses

In this experiment, we learned about stoichiometry, empirical formula, molecular formula, polyprotic acids and bases, metathesis reactions, and moles.

Suppose a household product label says it contains NaHCO3. How would you test this material for the presence of sodium bicarbonate?

HYDROCHLORIC ACID IS A CORROSIVE SUBSTANCE WHICH CAN CAUSE DAMAGE TO SKIN AND OTHER SUBSTANCES. IT HAS STRONG VAPORS. WEAR GOGGLES AND AN APRON. YOUR TEACHER WILL SHOW YOU HOW TO POUR THE ACID SAFELY. IF YOU SPILL ACID ON YOURSELF, WASH IT OFF WITH LOTS OF RUNNING WATER. A FEW DROPS SPILLED ON THE LAB BENCH CAN BE CLEANED UP WITH A PAPER TOWEL. A LARGE SPILL SHOULD BE NEUTRALIZED WITH BAKING SODA, AND THE RESULTING NEUTRAL SUBSTANCE CAN THEN BE WASHED INTO THE SINK WITH A

Product bubbled upon addition to the hydrochloric acid; liquid turned cloudy ¡V precipitate was present; zinc sample disintegrated slowly and turned black in color.

H2o co2 and h2co3 help in the dissolution of limestone and which produces bi carbonate which helps in the forming of caves and landscapes.

Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included, heat, cold water, hot water, acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step.

In this lab we performed four test. Using these test we discovered how the chemicals compounds Citric Acid, Calcium Chloride, Sucrose, Potassium Iodine, Phenyl Salicylate , and Sodium Chloride reacted to heat and many solutions. We also noticed that Phenyl salicylate was the least reactive out of all chemical compounds. Using the information discovered from the lab we were able to separate the chemical compounds into two groups. In group one were the chemical compounds Calcium chloride, Citric acid, Potassium iodide, Sodium chloride, and Sucrose these chemical compounds reacted to three of the four test. Group two was just Phenyl salicylate which reacted to only one of the four test. We also were able to state that group one was a covalent compound group and, group two was an ionic compound

Conduct studies on food, air, water and soil to determine how they are altered when coming into contact with medicines, garden chemicals and industrial chemicals

We discovered that the acetic acid reacted only with baking soda and sample #2. The acetic acid did not react with the sucrose or the table salt. During the conductivity test, the conductivity meter showed that the aqueous form of each substance, sample 2 included, conducted electricity. As the conductivity test produced no conclusive data, we based our determination of sample 2’s nature on the reaction with acetic acid. Sample 2’s reaction was only comparable to that of baking soda, leading us to believe sample 2 is indeed baking

Bbc.co.uk, (2014). BBC - GCSE Bitesize: Acids and bases. [online] Available at: http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/acids/acidsbasesrev1.shtml [Accessed 13 Oct. 2014].

When handling acids and bases, caution, such as wearing safety glasses and avoiding the direct smell of chemicals must be implied. The next step involves the reactions of metals with air, metal oxide and water, and acid. Firstly, a copper strip will be held in the flame of a candle for a few minutes. After heating, the burnt coating of the copper strip will be scraped off to differentiate how the copper appeared before and after. In the next reaction, calcium oxide will be mixed with two inches of distilled water, followed by two drops of phenolphthalein.

c/ an assessment of the importance of the technique in developing chemical understanding and as an application in other fields

This paper is about chemical reactions and chemical reaction types. All the data gathered was from conducting multiple experiments. Each experiment was performed carefully and analyzed to obtain the necessary information for the paper. That information included the four signs of a chemical change, the rnx type, and more.

The purpose of this project was to discover how the pH level affects corrosion rate. The hypothesis was if the pH level affects the corrosion rate, then the lower the pH level is quicker the corrosion rate would be. This will happen because liquids below the pH level of 7 possess stronger acidic attributes. The effect of pH level on corrosion rate was determined by depositing a copper penny in each of three plastic cups, and then three different liquids by their pH levels, were assigned to be displaced into each cup formulating a chemical reaction to be observed. The results collected during this investigation contradicted with the intended result, this experiment was conducted to determine corrosion rate; Dana Puti Vingear (pH level: 4.5)

Nowadays, the foods that we consume are quite acidic, and therefore the number of diseases that occur is larger, and the number of patients that suffer from cancer is also increased.