pH of Some Commorn Household Products INTRODUCTION Acids and bases are chemicals
ID: 897848 • Letter: P
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pH of Some Commorn Household Products INTRODUCTION Acids and bases are chemicals found in many products used in our everyday life. From the foods we eat to the soaps we use to clean our bodies and our clothes. Each of these products have a specific pH associated with it. pH is the indicator of the concentration of H (acid) in a solution or mixture. The pH of a product can be determined in several ways a pH meter, pH paper, Universal indicator, and natural indicators. In this experiment, each of these methods for determining pH will be used to gather data regarding the acid content of a number of common household products. RELEVANCE Acid and base content of products is a source of constant concern. Acid rain caused by industrial pollution can cause erosion of buildings and statuary Although we use acids to digest the food in our stomachs, excess amounts of acid can cause the stomach Gastric acid lining to erode and ulcers to form. Tablets containing bases such as bicarbonate are advertised to neutralize these bouts of excess acid production. We also see the importance of pH balance in the advertisements for soaps we use to clean our faces and our clothes. Too much acid or base can cause the breakdown of the pH 3,6-1.0 c 1.0 Substance Acid mine runof Battery acid Lemon juice Cola Vinegar Orange or apple juice3.5 Beer 2.9 natural oils that keep our skin supple or can breakdown Coffee Acid rain of the fibers in fabrics. Knowledge of products' pH is therefore a necessary part of our daily lives. Even thoughMilk many products now list their pH or acid content on their Pure Water labels, not all do and thus it is good idea to know how to Healthy human saliva determine the pH of these products. 5.0 Tea 5.5 7.0 6.5 7.4 Blood Sea water Hand Soap 8.0 9.0 10.0 11.5 12.5 13.5 Bleach Household lyeExplanation / Answer
2) it is expected because of the ionised hydronium ions already present in the soft drink (which has already been ionised)
3)a) pH=9.5, [H+]=10^-9.5
b) pH=2.8. [H+]=10^-2.9
For the rest part of your answers, you will have to use a pH meter from the lab and check them on the given compounds since th evlues will depend upon the concentration as well as purity
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