Bases

Name: Date: Graded Assignment Lab Report Answer each question, using complete sentences. When you have finished, submit this assignment to your teacher by the due date for full credit. (8 points) Score 1. List the values for T-alkalinity for Sample A and Sample B. List the ppm value for sodium carbonate for Sample A and Sample B. Answer: I am unable to answer this question because I don’t think I have enough information. This is asking for exact values and I don’t have the data to answer it

The chemical makeup of certain acids and bases that are not managed reacted properly can be harmful and a result of improperly measured acids and bases. This could have a negative effect on humans pertaining to different liquids that could be consumed or physically hazardous to the body. However, due to decades of research in the department of science, it can be confirmed that ideas like the HSAB Principle and the Lewis Principle help categorize acids and bases between being harmful or not and secondarily

and most accurately shows the pH before the evolution, how it slowly increases, spikes up and then levels off again. The first trial only shows the strong base part of the graph, and the second trial was better than the first, but the smaller interval on the third trial most accurately represents a titration curve for a strong acid and strong base. 8. The graph for trial 3 does not match the exact graph sketched in the pre-lab as it does not accurately show the equivalence point. The curve sketched

NaOH that were added from the burette is 0.00327 moles (one tablet of Gaviscon). However, the actual number of moles of calcium carbonate in a Gaviscon tablet is 0.0019 moles, but for Quick-eze, the number of moles is 0.0079 moles (actual amount of base in both tablets). This means that the number of moles added from the burette was more compared to the actual amount, which affects the accuracy of the results. However, these results are somewhat precise because of the minor difference between the

antacid is correct since it must contain less OH- ion. Therefore, the hypothesis was proven correct. Antacids are weak bases used to neutralize our stomach gastric acid, mainly composed of hydrochloric acid or HCl, through neutralization reaction. Neutralization reaction is when the reactants, acid and base, reacting with each other and produce a products of salt and water. Base + Acid --> Salt +

The buffer is a solution that minimises the changes in pH when small amounts of acid or base is added.There are two types of buffer solutions.They can either be acidic or alkaline.An acidic buffer is made by mixing equal amounts of a weak acid and its conjugate base.Similarly, an alkaline buffer has equal amounts of weak base and its conjugate acid. Alka seltzer acts as an antacid. It uses sodium hydrogen carbonate to neutralise excess hydrochloric acid in the stomach and thus relieves heartburn

is titrated with a strong base will produce a resultant solution has a pH that is slightly over 7. This is because strong acids have a lower pH and solutions that are less basic than weak acids that have been titrated with strong bases. When a weak acid is titrated with a strong base it will produce a resultant solution that is well above 7 because it starts off with a higher pH. Acids and bases with high concentrations result in large changes in pH, while acids and bases with low concentrations result

Acid is a particular substance with chemical properties including; turning litmus red, corroding metals, and neutralizing alkalis (bases). In the late 1800s, the Swedish scientist Svante Arrhenius suggested that acids are chemical compounds that, when dissolved in water, give a solution with a hydrogen ion activity greater then water, a pH less than 7.0. A base however is any compound that, when dissolved in water, gives a solution with a hydrogen ion activity lower than that of water, a pH higher

resources to assist you in answering. 7. What is pH? PH is a way to measure the concentration hydrogen ions in a sample. The pH scale is ranged from 0 to 14. PH is always thought of measuring the activity of hydrogen ions. 8. What is a base? A base is something that can accept hydrogen

chemical substance that turns litmus paper red, neutralizes alkalis, and dissolves metals. Bases are chemical substances that change litmus paper blue, react with acids to form salts and encourage certain chemical reactions. Acids produce H+ ions in aqueous solutions while bases accept H+ ions as well as produce OH- ions in aqueous solutions. In other words, acids are viewed as electron pair acceptors and bases as electron pair donors. Every liquid has either acidic or basic properties. A liquid that