Learn the pH of Common Chemicals

pH is a measure of how acidic or basic a chemical is when its in aqueous (water) solution. A neutral pH value (neither an acid nor a base) is 7. Substances with a pH greater than 7 up to 14 are considered bases. Chemicals with a pH lower than 7 down to 0 are considered acids. The closer the pH is to 0 or 14, the greater its acidity or basicity, respectively. Heres a list of the approximate pH of some common chemicals. Key Takeaways: pH of Common Chemicals pH is a measure of how acidic or basic an aqueous solution is. pH usually ranges from 0 (acidic) to 14 (basic). A pH value around 7 is considered neutral.pH is measured using pH paper or a pH meter.Most fruits, vegetables, and body fluids are acidic. While pure water is neutral, natural water may be either acidic or basic. Cleaners tend to be basic. pH of Common Acids Fruits and vegetables tend to be acidic. Citrus fruit, in particular, is acidic to the point where it can erode tooth enamel. Milk is often considered to be neutral, since its only slightly acidic. Milk becomes more acidic over time. The pH of urine and saliva is slightly acidic, around a pH of 6. Human skin, hair, and nails tends to have a pH around 5. 0 - Hydrochloric Acid (HCl)1.0 - Battery Acid (H2SO4 sulfuric acid) and stomach acid2.0 - Lemon Juice2.2 - Vinegar3.0 - Apples, Soda3.0 to 3.5 - Sauerkraut3.5 to 3.9 - Pickles4.0 - Wine and Beer4.5 - Tomatoes4.5 to 5.2 - Bananasaround 5.0 - Acid Rain5.0 - Black Coffee5.3 to 5.8 - Bread5.4 to 6.2 - Red Meat5.9 - Cheddar Cheese6.1 to 6.4 - Butter6.6 - Milk6.6 to 6.8 - Fish Neutral pH Chemicals Distilled water tends to be slightly acidic because of dissolved carbon dioxide and other gases. Pure water is nearly neutral, but rain water tends to be slightly acidic. Natural water rich in minerals tends to be alkaline or basic. 7.0 - Pure Water pH of Common Bases Many common cleaners are basic. Usually, these chemicals have very high pH. Blood is close to neutral, but is slightly basic. 7.0 to 10 - Shampoo7.4 - Human Blood7.4 - Human Tears7.8 - Eggaround 8 - Seawater8.3 - Baking Soda (Sodium Bicarbonate)around 9 - Toothpaste10.5 - Milk of Magnesia11.0 - Ammonia11.5 to 14 - Hair Straightening Chemicals12.4 - Lime (Calcium Hydroxide)13.0 - Lye14.0 - Sodium Hydroxide (NaOH) Other pH Values Soil pH ranges from 3 to 10. Most plants prefer a pH between 5.5 and 7.5. Stomach acid contains hydrochloric acid and other substances and has a pH value of 1.2. While pure water free of undissolved gases is neutral, not much else is. However, buffer solutions may be prepared to maintain a pH near 7. Dissolving table salt (sodium chloride) in water does not change its pH. How to Measure pH There are multiple ways to test the pH of substances. The simplest method is to use pH paper test strips. You can make these yourself using coffee filters and cabbage juice, use Litmus paper, or other test strips. The color of the test strips corresponds to a pH range. Because the color change depends on the type of indicator dye used to coat the paper, the result needs to be compared against a chart of standard. Another method is to draw a small sample of a substance and apply drops of pH indicator and observe the test change. Many home chemicals are natural pH indicators. pH test kits are available to test liquids. Usually these are designed for a particular application, like aquaria or swimming pools. pH test kits are fairly accurate, but may be affected by other chemicals in a sample. The most accurate method of measuring pH is using a pH meter. pH meters are more expensive than test papers or kits and require calibration, so they are generally used in schools and labs. Note About Safety Chemicals that have very low or very high pH are often corrosive and can produce chemical burns. Its fine to dilute these chemicals in pure water to test their pH. The value wont be changed, but the risk will be reduced. Sources Slessarev, E. W.; Lin, Y.; Bingham, N. L.; Johnson, J. E.; Dai, Y.; Schimel, J. P.; Chadwick, O. A. (November 2016). Water balance creates a threshold in soil pH at the global scale. Nature. 540 (7634): 567–569. doi:10.1038/nature20139

The Bell Jar Literary Analysis - 2261 Words

LeBouef 1 Breana LeBouef Mrs. Smith English III 9 November 2014 The Bell Jar: Literary Analysis With Author Biography Sylvia Plath is a renowned poet and author. She fantasied the world with her powerful writings. Beloved to the world, she truly changed women s status. She wrote distinctively from her own life experiences. This is cleared showed in her book, The Bell Jar. This book offers a theme of rebirth and a theme of feminism. The 27th of October in 1932, Sylvia Plath was born in Boston, Massachusetts. Her father, Otto Plath, was a college professor at the time and a German immigrant (Werlock 1049). Aurelia Schober, her mother, also worked in an university like Otto and taught secretarial studies (Werlock 1049). The family later moved to Winthrop. This is where Aurelia s parents lived and where Sylvia Plath would live throughout her childhood. According to Litz, The Plath household was a patriarchal one in the traditional, Old World sense (Litz 527). 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Travel Broadens the Mind Free Essays

Travel broadens the mind Traveling broadens our minds in different ways. I had visited a different country for the first time when I was 8. My father lives in Norway with his American wife. We will write a custom essay sample on Travel Broadens the Mind or any similar topic only for you Order Now I had already tasted the other side of life. I am only 15 and I know life is in front of me, but from my experience I know that traveling does change your point of view. How do you know? You might find yourself by traveling. Traveling does broaden our mind. We meet new people with new ideas . We find different architecture and religions. Other differences are the languages . The unknown languages are being a wall between us and the world. A wall that we break little by little every day being here in English class. Like we already said that travel broadens our mind. When we see how the other people survive we start thinking about our lives . We associate everything with our way of living . We started judging them for some things and being jealous for others. Every time when I travel I find something new, something different. But one thing will always be the same: when you travel you realize what are the most important things in your life. You start appreciating the little things in the big world. You discover that being rich is not to have money, cars or houses but to have friends and family to appreciate you. Whenever I get back from Norway, I am thinking differently. I see the bad and the good side of my country. I begin associating everything around me with the way they live in Norway. Travel broadens the mind, it shows us what are we missing and the important things in life. It does not really matter were you live or what launguage you are speaking, we are all people. We all have brains and bodys. We all have good and bad moments in our lives. Until you see something and get to know it better you can not judge it. Traveling broadens my mind. What about you? †¦ How to cite Travel Broadens the Mind, Papers

Examination of Postmodern Poetry Essay Example For Students

Examination of Postmodern Poetry Essay Examination of Postmodern Poetry Fanny Hoses poem When I was a child contains several similarities to Dickinson work. Hoses piece transcends Dickinson style In her compressed sentences and metaphysical narrative. The condensed form In which the poem Is written Is a style first seen In Dickinson writing. The theme of the metaphysical world is present in Hoses poem such as in the line l left my body to look for one (805). Howe presents her poems as meditations on matter and spirit (801). She intends o explore both the mysteries of interior life and the weight of the material world (801). These ideas are similar to Dickinson theme of her inner world. However, Howe does not emphasize death and dread to the extent of Dickinson. She embodies the postmodernist rejection of the Modernist despair and sense of tragic loss. The Norton Anthology accurately summarizes Charles Cells poems as able to haunt the mind long after one has read them (759). He has a flair for the bizarre, absurd, and disturbing. In his poem Fork, he Is able to suggest philosophical questions through the most particular and even ordinary things such as a fork (759). He is able to turn a fork into a violent weapon right out of hell (759). His childhood spent in Yugoslavia during the violence of World War II can be attributed to his absurd writing. He wrote that after what he and his family went through that the wildest lies seemed plausible and the poems that was going to write had to take that into account