McDalton Professional Edition free download, McDalton Professional Edition download on software download

Advertisement McDalton Professional Edition is a Home & Education software developed by Dr. Christer Svensson. After our trial and test, the software is proved to be official, secure and free. Here is the official description for McDalton Professional Edition: Edit By This is a freeware computer program, designed for professional use. In this program the uncertainty in the calculated molar mass is given as the absolute maximum error of the result. The calculated uncertainty is always rounded up to one significant figure. It is rounded up because otherwise it may occur as underestimated. Then the molar mass is rounded to the same absolute accuracy as given in the rounded uncertainty. An example will make this clear. The molar mass for PbO is calculated as 207.2 + 15.9994 = 223.1994 and the uncertainty in the molar mass is calculated as 0.1 + 0.0003 = 0.1003. The only significant figure in the uncertainty is the first Decimal and therefore molar mass is given as 223.2 ± 0.2 which is the best value and of course the uncertainty is rounded up as explained before. On recommendation by The International Union of Pure and Applied Chemistry, IUPAC, Atomic weights of the elements are taken from the Review Atomic weights of the elements 2007, published in Pure Appl. Chem. 78(11), 2051-2066, 2006 and Aug 2007 release. As Default all figures are used in the calculations. If you enter the formula of just one element the recommended atomic weight is displayed. In this Professional Edition the calculations are shown if the mouse is paused over the values.

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