Here is how the physics represented in everyday life activities, I list here some examples but not all, because physics theories and applica... Zinc and hydrochloric acid In the laboratory, the granules of zinc reacts slowly with dilute hydrochloric acid, but much faster if the acid... Who needs this course? Does a Tortle's Natural Armor interfere with the Monk's Unarmored Movement ability? chemistry online courses, articles,events ,news, and discussions, please type small brief:I am :my university is :my Question is :*donot bother us with nonsense links. One millimetre of mercury is approximately 1 Torr, which is 1/760 of standard atmospheric pressure (101325/760 ≈ 133.322368421053 pascals). 3 Answers. I am not sure what the $\mathrm{M}$ is supposed to mean? Get the top MM abbreviation related to Chemistry. Martin, thanks. Course Syl... M in chemistry stands for molarity, measured in moles per liter. What does this lambda–sigma notation mean? For more details, see our Privacy Policy. In medicine, pressure is still generally measured in millimetres of mercury. However, most chemical literature traditionally uses mol/dm 3, or mol dm-3, which is the same as mol/L. Amount of a constituent divided by the volume of the mixture. She has taught science courses at the high school, college, and graduate levels. 4 years ago. A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, and currently defined as exactly 133.322387415 pascals. Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution. So this is a 0.005 M solution of sodium nitrate. Mercury manometers were the first accurate pressure gauges; they are less used today due to mercury's toxicity, the mercury column's sensitivity to temperature and local gravity, and the greater convenience of other instrumentation. A solution using these units is called a molal solution (e.g., 0.1 m NaOH is a 0.1 molal solution of sodium hydroxide). Although not an SI unit, the millimetre of mercury is still routinely used in medicine, meteorology, aviation, and many other scientific fields. aus oder wählen Sie 'Einstellungen verwalten', um weitere Informationen zu erhalten und eine Auswahl zu treffen. What would prevent an eldritch deity from gaining the abilities of others that it absorbs? By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. [6] By the same factor, a millitorr is slightly less than a micrometre of mercury. 1 Answer. You would also use molality rather than molarity when you're calculating boiling point, boiling point elevation, melting point, or freezing point depression or working with other colligative properties of matter. Created Aug 24, 2012.
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