PH

Abstract A buffer is a solution that resists changes in pH when H+, OH-, or H20 is added. By using standard lab equipment, a lab pro diagnostic tool, and acidic and basic solutions, the pH can be found. By recording the pH while adding a base or an acid gradually to a buffer solution you can find the capacity of each buffer to resist drastic changes in pH. The best buffers will keep a solution from becoming either too acidic or basic with the addition of a strong base or acid. Introduction The

THE EFFECTS OF AMMONIA AND VINEGAR ON RADISH PLANTS 1 The Effects of Ammonia and Vinegar on Radish Plants THE EFFECTS OF AMMONIA AND VINEGAR ON RADISH PLANTS 2 Abstract INTRODUCTION OF GROUP Plants are one of the most complex organisms; how they grow is very complex and it is important to see how they grow to even how they die. We first had to propose a question and test it to see if it was profound enough to test. Our group decided to see how different chemical

experiment was to see how the amount of baking soda dissolved in vinegar would affect the pH of the vinegar. We conducted the experiment by testing different amounts of baking soda in constant amounts of vinegar, and dropping the solutions on pH paper. By comparing the colors on the pH paper to a list of colors in relation to numbers on the pH scale, we were able to find out that as more baking soda is added, the pH of the solution goes up as well. INTRODUCTION Ocean acidification is where the ocean water

invented the term pH to describe this effect and defined it as the -log[H1+ ]. In 1924 Sorensen realized that the pH of a solution is a function of the "activity" of the H1+ ion not the concentration and published a second paper on the subject. A better definition would be pH=-log[aH1+ ], where aH1+ denotes the activity of the H1+ ion. The activity of an ion is a function of many variables of which concentration is one. It is unfortunate that chemistry texts use a definition for pH that has been

that maintains the body pH homeostasis, bicarbonate buffer is the most important buffer system in blood plasma. This particular buffer consists of weak acid H2CO3 (pK1 = 6,1) and a strong base HCO3- (bicarbonate). Buffer solutions are used as a means of keeping pH constant. The ratio of bicarbonate buffer of bicarbonate to carbon dioxide is 20:1 (HCO3- : CO2). Figure 12 diagram shows the body’s buffering of blood pH levels: the blue arrows show the process of raising pH as more CO2 is made; the

Another follow up ABG at 0100 shows a small improvement on the Ph to 7.18, the Pco2 became more acidotic moved to 53, the Po2 improved to 77 which shows he is oxygenating better but still hypoxic, his Hco3 acidosis is improving at a change to 19.8, and sating 91% now. The Pt is now breathing at a rate has come down

precipitation does not affect people directly, but when it is inhaled, it can cause heart problems and affect the lungs, giving people asthma and bronchitis. Some of the effects that acid precipitation has, is that it has the ability to lower the natural pH of lakes and rivers. Acid precipitation can reduce agriculture yields and it can corrode metals and stone structures. Acid precipitation is detrimental to our ecosystems, destroying trees and lakes and and plants and animals. In 1852, a chemist by

The River, The Lake, And The Beans. Ronnie Rosario Elvira Rodriguez Nermin Moustafa Matthew Barnhart Doing Science (127) Dr. Beaudry and Dr. Hluchy I. Abstract The purpose of this water experiment is to compare two sources of waters and see if they would affect the growth of beans. For the purpose of this test, multiple samples were implemented to gather results with as much accuracy as possible. Every two days a study of our beans was conducted. Measuring the growth/length

agar and incubated at 37°C for 24 h. Blood agar plates were examined for signs of hemolysis. Blood hemolysis test was performed in duplicates. 3.16.2. Resistance to low pH Isolates Enterococcus durans and Enterococcus hirae were tested for their ability to resist low pH values as follow, 25 ml of sterile MRS broth adjusted to pH 6.4, 4, 3 and 2 was inoculated using 1% (v/v) of an overnight culture, then incubated at 37ºC for 6 h. The absorbance at 620 nm was monitored using spectrophotometer (Unico

of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.  This can include rain, snow, fog, hail or even dust that is acidic. Acid rain has a pH of 5.0 or less. Most acid deposition ranges from pH 4.3 to 5.0. While a small portion of the Sulfur dioxide and Nitrogen oxide that cause acid rain is from natural sources such as volcanoes, most of it comes from the burning of fossil fuels.  The major sources of Sulfur dioxide