PPT-Empirical

and Scientific Thinking Brendan Conway Corrine Vicari Kaitlyn Creel Matt Graham Empirical Thought Empirical thinking depends on past habit Based on observation and experience Ex AIt will probably rain tomorrow. Week 22 Chemistry. Warm Up: . 3. Minutes. A certain bag of M&M’s has 8 blue candies, 7 red candies, 4 green candies, and 6 yellow candies. What percentage of the bag is blue M&M’s? . Record your Learning . Miriam Huntley. SEAS, Harvard University. May 15, 2013. 18.338 Course Project. RMT. Real World Data. “When it comes to RMT in the real world, we know close to nothing.”. -Prof. Alan . Edelman. , last week. Molecular Formulas. Let’s use those mole conversions!. Empirical formula . tells you the lowest ratio of atoms within a molecule. Molecular formula . tells you the actual ratio of atoms within a molecule. You should know this for the quiz!. Empirical and Molecular Formulae. Empirical Formula. If needed, change % to g.. Do . a molar conversion to change from . g. mol. Divide each of these numbers by the smallest number. A survival analysis approach. Christophe J. . Godlewski. UHA & EM Strasbourg (. LaRGE. Research Center). 6. th. IFABS Conference . 2014. , . Lisbon. 1. 2. Take away. Determinants of bank loan renegotiation dynamics. Objectives. To learn how to work out the percentage composition by weight of a compound. To use percentage composition to work out empirical formulae. Percentage compositions. This means what percentage of each element is present in a compound, and therefore tells you what masses of each element are present in any given mass of a compound. . Molecular Formulas. Let’s use those mole conversions!. Empirical formula . tells you the lowest ratio of atoms within a molecule. Molecular formula . tells you the actual ratio of atoms within a molecule. Ondrej. . Ploc. Part 1. The main methods of descriptive statistics, . Statistical probability. Outline. 1.1 Formulation of statistical investigation. 1.2 . Creation of Scale. 1.3 . Measurement, Probability. Percent Composition. . Percent Composition – . the percentage by mass of each element in a compound . Percent =. _______. Part. Whole. x 100%. So…. Percent composition. of a compound or =. molecule. Percent Composition. Percent . Composition – . the . percentage . by mass of . each . element in a . compound (*note: not the ratio of elements in the compound). Law of Definite Proportions . – compounds always contain the same proportions of elements by mass.. Due at end of Period. The compound . benzamide. has the following percent composition. What is the empirical formula? . C . = 69.40 % H= 5.825 % O = 13.21 % N= 11.57 % . 2. A . component of protein called serine has an approximate . Lowest whole # ratio . H. 2. O. 2. (hydrogen peroxide) is it a empirical Formula?. No, you can reduce it to HO . . H. 2. O. 2 . is the molecular formula. Molecular formula shows the way the molecule is actually found in nature.. Determining Molecular Formulas. Calculate the molecular formula of a compound whose molar mass is 60.0 g/mol and has an empirical formula of CH4N.. What you need:. Empirical Formula. Molar Mass. Calculate the molar mass of the empirical formula. We have discussed theoretical analysis of algorithms mostly in terms of asymptotic worst case and average case big O complexities. What we often care about even more is what will our typical or average case complexity be for our actual problem of interest.