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Define Buffers and Buffer Solutions?
Solutions containing both weak acid and their salts or solutions containing weak hydroxides and their salts are referred to as buffer solutions. They have the capacity of resisting changes in pH when either acid or alkali is added to them. Buffers are therefore, aqueous solutions that tend to resist any pH change when small amounts of acid or base are added. A buffer system consists of a weak acid (proton donor) and its conjugate base (proton acceptor) or a weak base and its conjugate acid in comparable concentrations. Because they maintain a constant pH, buffers are good reference solutions.
Q. Classifications of mechanical cleaning devices? In general, three classifications of mechanical cleaning devices are available for the dental office. They are: ult
Q. Determine the quality of various food grains? After undertaking this activity, you will be able to: • determine the various fractions involved with the physical examinati
FLUI D MOSAIC MODEL Proposed by Nicholson and Singer (1972) Proteins and lipids are arranged in a mosaic fashion. Lipids and proteins are in a semi fluid structure.
Vasa efferentia are the ductules leading from: 1. Testicular lobules to rete testis 2. Rete testis to vas deferens 3. Vas deferens to epididymis 4. Epididymis to urethra
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Define water losses by Intestine and Lungs? Intestine : A small quantity of water (about 100-200 ml) is normally lost in faeces, but this can exceed 5 L in diarrhoeal episodes
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what is the bet way to asses energy production in the body of an athlete?
Q. Which are the most important inorganic molecular substances for living beings? The most important inorganic substances for living beings are mineral salts, water, molecular
MUTATION THEORY (Hugo de Vries 1901) - New species are not formed by continuous variations but sudden appearance of variations i.e., mutation. Mutation are heritable and per
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