chemistry

Chemistry
subject area 1: Stoichiometry
1.1.1Mole concept is applied 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 morsel of particles:
1.2.1 Formula involving molar big bucks (g mol-1), amount of substance (mol-1) and slew (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 atomic mass the mass of average atom of the element, congener to the atom having mass of 12 (carbon)
Relative molecular mass relative mass of a molecule
1.2.4
1.2.5Empirical construction formula involving simplest ratio of elements. E.g. CH4
1.4.1Finding theoretical yield: 1. Finding alteration reactant,2 Finding molar ration, 3. Calculating of the theoretical yield. Example:

milling machinery ratio of reactants is respectively 1:2:1

Ratio mingled with the amounts of substance is then 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 have to be
1.4.2Avogadros law in bollix upes: It is found that a given volume of any gun involves always the same number of particles. Volume of a gas = molar volume of a gas
1.5.



1Solution when a substance is mixed with a liquid to form homogenous mixture
answer the liquid the substance is solved in
Solute the substance that is dissolved
1.5.2Calculations involving concentration:

Topic 2. Atomic Theory
2.1.1The accepted values are: proton (mass: 1, campaign +1), neutron (mass: 1, charge 0), electron (mass 1/1840, charge 1)
2.1.2Protons and neutrons are placed unneurotic by a force creating marrow. Electrons are circuling around the nucleus arranged in shells (levels)
2.1.3Mass number 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



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