what is a buffer?
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buffer buffer. a substance that, by its presence in solution, increases the amount of acid or alkali necessary to produce a unit change in pH. The bicarbonate buffer system in the blood maintains a balance between bicarbonate and carbon dioxide ions and deterimnes the pH of the blood.
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Principles of Biochemistry/Water: The solvent of the cell For uses not related to acid-base chemistry, see Buffer (disambiguation). A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. buffer of carbonic acid (H 2 CO 3) and bicarbonate (HCO 3 −) is present in blood plasma, to maintain a pH between 7.35 and 7.45. Industrially, buffer solutions are used in fermentation processes and in setting the correct conditions for dyes used in colouring fabrics.
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buffer Part of the Computing fundamentals glossary: A buffer is a data area shared by hardware devices or program processes that operate at different speeds or with different sets of priorities. The buffer allows each device or process to operate without being held up by the other.art of the Computing fundamentals glossary: A buffer is a data area shared by hardware devices or program processes that operate at different speeds or with different sets of priorities. The buffer allows each device or process to operate without being held up by the other.
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Phosphate buffered saline Phosphate buffered saline (abbreviated as PBS) is a buffer solution commonly used in biological research. It is a salty solution containing sodium chloride, sodium phosphate, and (in some formulations) potassium chloride and potassium phosphate. The buffer helps to maintain a constant pH. The osmolarity and ion concentrations of the solution usually match those of the human body (isotonic).
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Guide to Streaming: Stop Buffering Videos in Windows Media Player Before rolling up our sleeves and tweaking with settings to stop buffering in Windows Media Player (WMP), we have to understand what buffering is, in terms of streaming media. Buffers are actually a form of temporary storage that computer programs use in memory areas.
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Data buffer Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming.
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buffer 2. any device, material, or apparatus used as a shield, cushion, or bumper, esp. on machinery. 3. any intermediate or intervening shield or device reducing the danger of interaction between two machines, chemicals, electronic components, etc.
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buffer a substance or group of substances that tends to control the hydrogen ion concentration in a solution by reacting with hydrogen ions of an acid added to the system and releasing hydrogen ions to a base added to the system. Buffers minimize significant changes of pH in a chemical system.
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pH and Buffers Defined Buffers. To be able to add a strong acid or base to a solution without causing a large change in the pH, we need to create a buffer solution. A buffer solution contains both a weak acid (HA) and its conjugate base (A -).
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What are the three different types of buffer systems in the human body? Chemical buffers of the body include the bicarbonate, phosphate, and protein buffer systems. Chemical buffers are single or paired sets (a weak acid and its salt) of molecules that act rapidly to resist excessive shifts in pH by releasing or binding H+.
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- An excess of H + or OH-can interfere with the structure and activity of many biomolecules, especially proteins. Therefore, buffers are commonly used in living organisms to help maintain a relatively stable pH.
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- A container for data of a specific primitive type. A buffer's capacity is the number of elements it contains. The capacity of a buffer is never negative and never changes. A buffer's limit is the index of the first element that should not be read or written.A buffer's limit is never negative and is never greater than its capacity.side from its content, the essential properties of a buffer are its capacity, limit, and position: A buffer's capacity is the number of elements it contains. The capacity of a buffer is never negative and never changes. A buffer's limit is the index of the first element that should not be read or written.
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pH and Buffers A buffer is any substance that minimizes change in the pH of a solution. Most buffers consist of a combination of a weak acid and the weak base, where the base is the anion remaining after the weak acid dissociates (separates) to release H + ions.
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Chemistry of buffers and buffers in our blood “A buffer is an aqueous solution that resists changes in pH upon the addition of an acid or a base”. Also, adding water to a buffer or allowing water to evaporate from the buffer does not change the pH of a buffer significantly.
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- 1 The body's acid–base balance is normally tightly regulated, keeping the arterial blood pH between 7.38 and 7.42. Buffer solutions keep pH constant in a wide variety of chemical actions.  A buffer solution is a mixture of a weak acid and it conjugate base or a weak base and its conjugate acid.
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- TE buffer. TE buffer is a commonly used buffer solution in molecular biology, especially in procedures involving DNA, cDNA or RNA. TE is derived from its components: Tris, a common pH buffer, and EDTA, a molecule that chelates cations like Mg2+. The purpose of TE buffer is to solubilize DNA or RNA, while protecting it from degradation.
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buffer informal offensive Brit a stupid or bumbling man (esp in the phrase old buffer) [C18: perhaps from Middle English buffer stammerer] buff•er 1 (ˈbʌf ər) n. 1. an apparatus at the end of a railroad car, railroad track, etc., for absorbing shock during coupling, collisions, etc. 2.
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buffer buffer - an implement consisting of soft material mounted on a block; used for polishing (as in manicuring) buff. implement - instrumentation (a piece of equipment or tool) used to effect an end. Verb: 1. buffer - add a buffer (a solution); buffered saline solution for the eyes
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- Henderson-Hasselbalch equation to make buffer solutions at a desired pH. value. Introduction: A buffer system is a mixture of a weak acid or a weak base and its salt. (conjugate base or conjugate acid, respectively) that permits solutions to. resist large changes in pH upon the addition of small amounts of hydrogen. ions (H+) or hydroxide ions (OH-).
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Buffer Solutions In chemistry, pH is a measure of the hydrogen ion (H+) concentration in a solution. The pH of a buffer can be calculated from the concentrations of the various components of the reaction. The balanced equation for a buffer is: $HA \rightleftharpoons H^+ + A^-$.
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- There are two types of buffer. 1  Weak acid and the salt of the same weak acid, (for example a solution containing ethanoic acid and sodium ethanoate). 2  Weak base and the salt of a the same weak base (for example ammonia and ammonium chloride solution).
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- What is a buffer state? A buffer state is a small neutral country, situated between two larger hostile countries, serving to prevent the outbreak of regional conflict. The state is demilitarized … in the sense that it will not host the military's of either hostile country.
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All-1B-allanswer - CHAPTER 14 CHEMICAL KINETICS PRACTICE... Which definition best describes a buffer? A buffer is a substance in a solution that releases and captures hydrogen ions, keeping the pH the same. Sodium hydroxide, a base, is added to the solution, but the pH of th … e solution does not change A buffer resists change in pH by accepting hydrogen ions when acids are added to the solution and donating hydrogen ions when bases are added.
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Buffer solution Buffer solutions are solutions that resist changes in pH (by resisting changes in hydronium ion and hydroxide ion concentrations) upon addition of small amounts of acid or base, or upon dilution. They usually consist of a weak acid and its conjugate base, or, less commonly, a weak base and its conjugate acid.
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Data buffer Memory buffer redirects here. It is not to be confused with memory buffer register. In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another.owever, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in a fixed memory location in hardware—or by using a virtual data buffer in software, pointing at a location in the physical memory.
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- The 3 main buffer systems in our bodies are the bicarbonate buffer system, the phosphate buffer system, and the protein buffer system. In the laboratory, molecular and cellular biologists make extensive use of buffers to stabilize the pH of aqueous solutions.