Acidity and basicity, proton concentration, the pH scale, and buffers.
Log in Ese Solo 9 years agoPosted 9 years ago. Direct link to Ese Solo's post “why does the human blood ...” why does the human blood need to be at a certain Ph • (26 votes) Ramzi 9 years agoPosted 9 years ago. Direct link to Ramzi's post “Enzymes in the body are v...” Enzymes in the body are very specific, so they can only operate at certain pH and temperature. If the pH levels go up or down too much in the body, the enzymes will start to denature (unfold), and will no longer work properly, which would have disastrous effects on the human body. (81 votes) Cody Kaplan 8 years agoPosted 8 years ago. Direct link to Cody Kaplan's post “so how does having more H...” so how does having more H+ per molar make a liquid able to burn a hole in a wall? • (29 votes) Matt B 8 years agoPosted 8 years ago. Direct link to Matt B's post “The H+ are super reactive...” The H+ are super reactive. The more of these you have in solution, the more reactive your solution will be. If it is highly acidic, then the H+ ions may react with the paint on the wall and otherwise disintegrate materials that make up the wall too. gina19ramirez 9 years agoPosted 9 years ago. Direct link to gina19ramirez's post “In our class we "made yog...” In our class we "made yogurt", the milk's pH was 6.The final pH with the yogurt was 4. What happened to the pH of the milk as it turned into yogurt, and why did this change occur? • (15 votes) myopicvisions 9 years agoPosted 9 years ago. Direct link to myopicvisions's post “Bacteria digest the sugar...” Bacteria digest the sugars in the milk, producing lactic acid as a waste product. This is one reason yogurt tastes tangy. (29 votes) Shenghao Tan 9 years agoPosted 9 years ago. Direct link to Shenghao Tan's post “Why does cytoplasm have a...” Why does cytoplasm have a lower pH compared to blood? • (7 votes) myopicvisions 9 years agoPosted 9 years ago. Direct link to myopicvisions's post “Because the cells maintai...” Because the cells maintain an ionic gradient between the inside and the outside of the cell as part of how it uses energy from different molecules to do work. Organic molecules such as proteins help to maintain this gradient. Some are too large to go diffuse through the membrane and hold a charge (like an ion), and others actively pump ions one or both ways to maintain the gradient. (14 votes) glenn G 9 years agoPosted 9 years ago. Direct link to glenn G's post “Can you explain this anot...” Can you explain this another way, I have not been able to fully understand how it works out. Thanks. • (7 votes) 🤔 ᴄᴏᴅᴇᴅ ɢᴇɴɪᴜȿ 😎 7 years agoPosted 7 years ago. Direct link to 🤔 ᴄᴏᴅᴇᴅ ɢᴇɴɪᴜȿ 😎's post “In the video "Definition ...” In the video "Definition of pH," (https://www.khanacademy.org/science/biology/water-acids-and-bases/acids-bases-and-ph/v/introduction-to-definition-of-ph) Sal draws a diagram of the logarithmic scale number line with bleach at 12. The image of the same type of number line (https://ka-perseus-images.s3.amazonaws.com/7ca9aecccf7e9d5caaf1ea10d2835c81f4036708.png) has bleach at 13. So does bleach have a pH of 12 or 13? • (4 votes) Butterfly 7 years agoPosted 7 years ago. Direct link to Butterfly's post “Bleach has a PH of 12.6, ...” Bleach has a PH of 12.6, so neither one is far off. (6 votes) IVY PARK 10 months agoPosted 10 months ago. Direct link to IVY PARK's post “I have a question. If I ...” I have a question. • (3 votes) Charles LaCour 10 months agoPosted 10 months ago. Direct link to Charles LaCour's post “First of all for safety w...” First of all for safety when combining any chemicals you need to know what the reaction is going to produce. Adding bleach to an acid will produce chlorine gas which is toxic and very hazardous to breathe. To answer your question, yes initially the pH of the gastric acid (primarily hydrochloric acid) will lower but depending on the other chemical reactions it may not stay lower. Adding bleach to hydrochloric acid you get water, salt and chlorine gas. (7 votes) Brianna a year agoPosted a year ago. Direct link to Brianna's post “33,460,000,000,000,000,00...” 33,460,000,000,000,000,000,000,000 • (4 votes) spencertanenholtz 5 years agoPosted 5 years ago. Direct link to spencertanenholtz's post “I know that, say, 7.0 is ...” I know that, say, 7.0 is 10 times more acidic than 8.0 (although it isn't acidic). If that's the case, then how much more acidic is, say, 8.0 than 8.2? Thanks! • (2 votes) tyersome 5 years agoPosted 5 years ago. Direct link to tyersome's post “Since pH is based on base...” Since pH is based on base-10 logs (log₁₀) you just need to do the inverse function. That means 10⁰⋅² or approximately 1.58 times more acidic. If this seems mysterious, you might want to review the material on exponentials and logs — for example: Does that help? (5 votes) Fatima 2 years agoPosted 2 years ago. Direct link to Fatima's post “Is water an acidic or a b...” Is water an acidic or a basic solution? • (2 votes) FrozenPhoenix45 2 years agoPosted 2 years ago. Direct link to FrozenPhoenix45's post “Pure water has a pH of 7,...” Pure water has a pH of 7, which is considered perfectly neutral because it is neither acidic or basic, but rather right in the middle. However, that is water in its purest form, and the water you come in contact with is rarely, if ever, that pure. Water found in nature has substances dissolved in it that influence its pH. These substances produce ions when dissolved in water. When the water has extra H+ ions, it is considered acidic. If it contains OH- ions, it is basic. Rain water is acidic, with a pH of around 5.0 - 5.5, and sea water is basic with a pH of roughly 8.1. So water in and of itself is neither acidic nor basic. However, when it becomes a solvent in a solution, its pH is affected by the solute(s) that is/are dissolved in it. Many factors can affect the pH of water, natural and human. Carbon dioxide dissolving in water (and being removed through photosynthesis), temperature changes, organic decomposition, soil, and the presence of calcium carbonate (limestone) are all natural factors that affect its pH. Pollution is a major human-influenced factor that affects the pH of natural water. I hope this helped! (4 votes)Want to join the conversation?
"This number may seem a little arbitrary, but it has the handy property of causing the mass of one mole of an element in grams to equal the mass of one molecule of that element in atomic mass units."
If I added Bleach with Gastric acid, would the ph be back to 7??
Just curious and wanted to break the logic of science
https://www.khanacademy.org/math/algebra2/exponential-and-logarithmic-functions
