Lab+3-Water

pH is the amount of acid within a solution. A hydrogen is chemically active when it is being held either tightly or loosely to the acid. Acids contain more hydrogens in the solution. Bases contain more alcohol within the solution. 10 times more acidic. When something tastes acidity it has a sour taste to it and the alkalinity makes something taste soapy. Acid and base balance within the body is very important for oxygen levels. Buffering capacity of the oxygen is affected through the Bohr effect. Oxygen in the blood is correlated with PaO2 but when the acidity increases, less oxygen is present but raising the pH increases the amount of oxygen binding which leads to the ability of more oxygen to be carried. The body is able to take away acids from the solution. This occurs during respiration when the carbonic acid is converted to carbon dioxide. Excess acid or excess alkalai is removed through the kidneys. Changes of the bicarbonate in the kidney occur very slowly and can take up to almost days. After Steps 1-4: However, I either had too much water or not enough cabbage so it did not turn out purple. So, Bobby let me use his extra solution: After adding the vinegar and baking soda: FINAL SOLUTION AND TABLE: Baking soda- after 50 drops the color has turned back to the same color as the first test tube
 * Questions: **
 * 1. What IS pH? **
 * 2. What makes hydrogen chemically active? **
 * 3. What does it mean when something is acid? **
 * 4. What does it mean when something is basic? **
 * 5. How much more acidic is something that is pH 3 than pH 4? **
 * 6. How does the acidity or alkalinity of food affect human taste buds? **
 * Summaries: **
 * a. Acid-Base Balance in the Body **
 * <span style="font-family: Arial,Helvetica;">b. Carbonic Acid-Bicarbonate Buffering **
 * **Chemical Added** || * number of drops || Color || pH using paper** ||
 * Vinegar || 38 || pink || 5.5 ||
 * Baking Soda || 50 || blue || 9.5 ||
 * Control || 0 || purple || 3.0 ||

Adding the NaOH, the solution turned out to be green: Exercise 2: Buffer-After baking soda, light blue. After continuing to add vinegar drop by drop:
 * Trial || # of drops ||
 * 1 || 115 ||
 * 2 || 109 ||
 * 3 || 128 ||