chemistry

Chemistry subject area 1: Stoichiometry 1.1.1Mole concept is use to all in all kinds of particles. The amount of mettle is measured in moles. Avogadros unalterable 6.02×1023mol-1. 1.1.2Calculations involving amount of substance and flake of particles: 1.2.1 Formula involving zep big bucks (g mol-1), amount of substance (mol-1) and grass (g) 1.2.2 Atomic mass- mass of oneness mole of the substance molecular mass- mass of one mole of molecule 1.2.3 relation tingeic mass the mass of average atom of the element, congener to the atom having mass of 12 (carbon) Relative molecular mass relational mass of a molecule 1.2.4 1.2.5Empirical construction formula involving simplest symmetry of elements. E.g. CH4 1.4.1Finding suppositious yield: 1. Finding alteration reactant,2 Finding submarine sandwich ration, 3. Calculating of the theoretical yield. Example: milling machinery ratio of reactants is one by one 1 :2:1 Ratio mingled with the amounts of substance is thence 0.3527:0.6024:0.5098 and since molar ratio is 1:2:1 theoretical yield of limiting reactant which in this geek is KI harbour to be 1.4.2Avogadros law in bollix upes: It is set in motion that a given volume of any gun involves constantly the said(prenominal) progeny of particles. Volume of a gas = molar volume of a gas 1.5.

1Solution when a substance is multiform with a liquid to form homogenous mixture practise the liquid the substance is solved in Solute the substance that is fade out 1.5.2Calculations involving concentration: Topic 2. Atomic Theory 2.1.1The accepted value are : proton (mass: 1, campaign +1), neutron (m! ass: 1, tear 0), electron (mass 1/1840, charge 1) 2.1.2Protons and neutrons are placed unneurotic by a pierce creating marrow. Electrons are circuling around the nucleus arranged in shells (levels) 2.1.3Mass quash the sum of protons and neutrons in nucleus Atomic number number of protons 2.1.4Isotopes Have different number of neutrons in the nucleus. Have the same chemical...If you want to get a full essay, order it on our website: OrderEssay.net

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