Flashcards
Chemistry Equations / Maths
Cards in this deck (27)
- 1RAM of an isotopemass of each isotope by its relative abundance added together / relative abundance
- 2RFMRAMs of each atom in molecule added together
- 3Empirical formulaList elements, write experimental masses, divide by atomic no., even out
- 4molecular formulafind mass of empirical formula, relative molecular mass/ans, empirical formula x empirical unit
- 5Masses in a reactionbalanced equation, find RFM of required parts in equation, divide to get one then multiply to get all
- 6percentage yield(actual yield/theoretical yield) x 100
- 7number of molesmass in g / RAM (or RFM)
- 8volume(mass/RAM) x 24 = dm3
(mass/RAM) x 24000 = cm3 - 9concentrationno. of moles / volume
- 10electrolysisno. of moles = charge / charge of ion x faraday constant (which is 96000)
- 11acid + metalsalt + hydrogen
- 12metal + watermetal hydroxide + hydrogen
- 13less reactive metal + steammetal oxide + hydrogen
- 14iron + oxygen + water (Rusting)hydrated iron (III) oxide
(rust) - 15Production of O22H2O2 (aq) ---> 2H2O (l) + O2 (g)
- 16AlkanesCnH2n+2
- 17Complete Combustion alkane + oxygencarbon dioxide + water
- 18Incomplete Combustion alkane + oxygencarbon + carbon monoxide + carbon dioxide + water
- 19AlkenesCnH2n
- 20acid + basesalt + water
- 21acid + metal oxidesalt + water
- 22acid + metal carbonatesalt + water + carbon dioxide
- 23acid + insoluble base (making soluble salts)salt + carbon dioxide + water
- 24titrationno. of moles of known substance, according to equation work out no. of mole of unknown substance, work out its concentration
- 25rate of reactionamount of reactant used or amount of product formed / time
- 26enthalpy changetotal energy absorbed to break bonds - total energy released in making bonds
- 27the Haber ProcessN2 (g) + 3H2 (g) <-----> 2NH3 (g) (+ heat)
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- GCSE Chemistry Flashcards on Chemistry Equations / Maths , created by Georgia B on 03/04/2014.
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- Georgia B
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