Litmus Paper Experiment

You want to investigate a new wave of vitamin water is pH neutral. Results are: Three of the five samples turn a murky

In order to find the pH of each household item by using pH paper, the pH paper was placed on the drop plate. Using the dropper, start by having the household item dropped onto the pH paper. Immediately observe in order to spot any colour changes on the pH paper. To determine the pH by using the pH scale and record the pH on your table of observations. Depending on what the pH is, it could be very acidic, basic or neutral. Repeat these steps for the other products.

In this experiment there needs to be a chemical reaction. Also there needs to be atoms, “Baking soda and vinegar react with each other because they exchange atoms” ( UCSB Science Line ). Their also needs to be a chemical compound for baking soda and vinegar. The chemical compound for baking soda is NaHCO3. Also the chemical compound for vinegar HCH3COO. They react because baking soda is a base and vinegar is a acid that will dissolve in water.

The red cabbage indicator shows how a usual household product such as red cabbage can make a suitable indicator and be able find out if a chemical is either and acid, alkali or neutral. Acids are a chemical that reacts with an alkali neutralising it producing water and a salt. Acids are also commonly found to be sour tasting. Acids react with metals, releasing hydrogen gas and leaving behind a salt they also can conduct electricity. Acids also readily give off hydrogen ions and have a pH level lower than 7. Some more common laboratory acids are Hydrochloric, Sulphuric and Nitric Acids. Sulphuric acids and water are used in car batteries as the electrolyte.

pH is also known as a measure of hydrogen ions in a solution. A hydrogen ion is the nucleus of a hydrogen atom being split from its electron. Studying the pH of different types of soil being placed in a control group such as tap water will represent the acidity or alkalinity of the matter. The pH scale begins at 0 and goes all the way up to 14, pH 7 being its neutral point, which isn’t acidic or basic. A neutral point on the acidic scale is in the middle, anything lower than the neutral point (7), is acidic, and anything higher than the neutral point is considered basic or “alkaline”.

For example, in the experiment when I poured Hydrochloric acid in a test tube and then one magnesium ribbon, the substances started to bubble. Other than that, when I took the wooden split and lit it, I burned the green paper and it changed brown around the edges of the paper.

By using the pH paper to measure the solutions A through E it would point out what substance is an acid and which one was basic. Also, by adding Bromothymol blue and Phenolphthalein afterwards to the solution it would indicate what color it would turn to when mixed into an acid and a base.

An acid is a chemical substance that typically has a corrosive or sour-taste and turns litmus paper red. It has a pH of below 7 and can generally dissolve some metals or even neutralize alkalis. A base on the other hand, is the opposite. They have a bitter taste and are very aqueous. Their pH rating is above 7 and they turn litmus paper blue. In science, pH is the negative log of the activity of the hydrogen ion in an aqueous solution. Basically, we find the pH of a substance by using a testing strip or litmus paper to see the amount of H+ atoms in it. Litmus paper, a common indicator, is used to easily test the pH level of a substance. We can see how acidic or basic a substance is by comparing it to others on a pH scale. A pH scale ranges from 0-14, the most acidic being 0 and most basic being 14. Lemon juice, for example, has a pH of 2 meaning its very acidic. However, average dish soap has a pH of 7-8. The only thing left is a pH level of exactly 7. A pH of 7 is perfectly neutral, not acidic or

PH is . a numeric scale used to specify the acidity or alkalinity of an aqueous solution. The tests my group and I did was Dissolved Oxygen, Nitrate, phosphate, and the alkalinity tests. We also tested the rocks to see if they could neutralize the rocks. Neutralize renders something in effective or harmless applying an opposite force of effect. The two rocks that we studied were limestone and sandstone.

In this experiment, I have conducted a result of substances, whether they are basic or acidic, by using the Universal Indicator and Litmus Paper. We tested 13 household substances, with two extra substances called hydrochloric acid and sodium hydroxide. Those two substances were used as to control the experiment. Five out of thirteen substances had the same PH, while the others had different numbers. The ones that were different were mostly off by a number, which tells us that it is slightly accurate, comparing to those two indicators. For an example, conditioner has a PH of 4, known as medium acidic, acids have a lot of hydrogen, which makes the scales stick down better when it's acidic. The Universal Indicator is more accurate than the Litmus

My science fair topic will be measuring the acidic levels in different companies of water bottles such as Aquafina, Dasani, Evian, Fiji, Miami Dade Tap Water, Penta, Publix Spring Water, Smart Water, Smart Water, Volvic, Voss, and Zephyrhills. Bottled water has been tested for its ppm (parts per million) to measure the amount of particles inside the water. The pH scale is a measurement of how acidic or basic an aqueous solution is. The pH scale has a range of 0-14; numbers less than 7 are considered acidic and numbers greater than 7 are considered basic. An acidic pH level means that the solution has more free hydrogen ions, and a basic pH level means that the solution has more free hydroxyl ions. pH is reported in logarithmic units and an increase or decrease of one on the pH scale has a 10-fold change. The negative logarithmic of the hydrogen ion concentration calculates the pH level of a solution. This is why pH stands for the potential of hydrogen and it calculate din

By using acid-base titration, we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein's color range. The titration of acetic acid with sodium hydroxide resulted in an equivalence point out of the range of methyl red. And the titration of ammonia with hydrochloric acid had an equivalence point that was also out of the range of phenolphthalein.. The methyl red indicator and the phenolphthalein indicator were unsuitable because their pH ranges for their color changes did not cover the equivalence points of the trials in which they were used. However, the

When the household substances were added to the red cabbage indicator they changed colour, which helped determine the pH levels. There were many different colours which indicated a variety of pH levels. The different colours also helped me categories them into the three categories known as acid, base and neutral.

I also learned that pH scale is measured either with litmus paper, you dip in the substance and measure that color to a acidity color

When the eighth-grade classes began the experiment, they found that when they mix citric acid, baking soda, and a few drops of water it created a reaction. When mixed with water, citric acid and baking soda started to fizz and bubble. This fizz and bubbling went as