PH indicator

7. RESULT & OBSERVATION Table No.7.1:- Morphological characteristics of Jasminum grandiflorum leaves S.No. Character Observation 1 Color Gggggggg Green 2 Odour Characteristic 3 Taste Acrid 4 Size 4-5.5 cm. length 5 Texture Smooth Table No.7.2:- Physiochemical analysis of powder of Jasminum grandiflorum leaves S.No. Parameters Observation (%) 1 Loss on drying 0.6 2 Total ash value 7 3 Acid insoluble ash value 2.6 4 Water soluble ash value 1.25 5 Foaming index 22 (ml)…

microorganism strains and re-test it to ensure that we can get an accurate and reliable result. Besides that, the parameter and standardization of disc diffusion method procedure should be followed to get the accurate and reproducible results. For example, the pH of the Mueller-Hinton agar should be maintained in the range of 7.2 -7.4 and keep it in room temperature after gelling. Otherwise, some antimicrobials will appear to lose potency while other agents may appear to have excessive activity.…

Experiment 1. Title: How does the amount of baking soda affect its reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid). Hypothesis: If the amount of baking soda is increased then the length of its reaction with vinegar will increase because there will be more soda bicarbonate for the acetic acid to react with. Equipment:  Baking Soda  Vinegar  5 glasses  Safety glasses …

As the pH level moves away from the normal balance of 7.0, it can negatively impact the survival and hatching rate of aquatic life.Both plastic and the fumes admitted when plastics are made, put excessive amounts of carbon dioxide into the ocean. This has caused the PH levels in the ocean to rise from a balanced PH level of 7, and has brought it up to 8.2. The jump in the acidity levels is destroying the great barrier reef, and shellfish beds. A raised PH level also poses a threat…

of all pH levels they were all consistent numbers. Also, when the pH is acidic there will be very little oxygen produced, when the pH is neutral it will have the highest enzyme activity and when its basic it will start to produce less oxygen again. Each pH level had different concentrations, pH 4.8 which was the most acidic produced 2, 1 and 2mls of foam. pH 5.3 which is slightly acidic produced 2, 4 & 2mls of foam. pH 7.4 which is close to neutral produced 30, 32 and 30mls of foam and pH 8.7…

Acid and Base Theories Final Paper In the world of science, there are three main theories for acids and bases. Those three theories are the Arrhenius theory, the Bronsted-Lowry theory, and the Lewis theory. An Arrhenius acid is defined as a substance that increases the concentration of hydronium ions in aqueous solution and an Arrhenius base is defined as a substance that increases the concentration of hydroxide ions in aqueous solutions. The definition of a Bronsted-Lowry acid is that it is a…

Johnson 125). The researchers discovered that when the synthesized acid rain reached pH levels below 2.0, there were significant reductions in the germination of such plants (McColl and Johnson 127). Additionally, some of the germination rates in certain firs and pines were reduced by up to 32 percent (McColl and Johnson 125). Also, there were related problems to the plants that were exposed to the acid rain with pH levels below 2.0. The plants appeared to have problems absorbing and utilizing…

how the discharge and pH of a river are related and if there is any correlation between the two. Discharge is the measure of the total volume of water at a certain point in time recorded in cubic feet per second. pH is the acidity or alkalinity of the water measured on a scale from 1 to 14. I was interested to see if river discharge and pH levels had any relation and if the data collected could show any correlation. This information could be used to predict when and where pH levels rise above…

few hypotheses. For example, we tested the whether the rate of the reaction was influenced by enzyme concentration, whether the activity of the enzyme was influenced by temperature and also too see if the activity of the enzyme was influenced by the pH of the solution, which you will then see the results on the graphs and charts that I provided. In figure one we show results of the trial run from the enzyme activity where the absorbance was at 500nm.…

In order to safely dispose of a solution with a pH of 12, the solution needs to be diluted with an acid to neutralize the basic solution. The pH range should be between 5 to 8 to be ready for disposal. 2. A graduated cylinder, Erlenmeyer flask, and beaker were used to measure a 60-mL volume. Which of these devices seems to be the most accurate for measuring a 60-mL volume? Be sure to explain what the term ‘accurate’ means. How did you determine this during lab? State some reasons why this…