GCSE Chemistry Specification

OCR A J248

Section C5.1: Monitoring chemical reactions

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#C5.1a

explain how the concentration of a solution in mol/dm3 is related to the mass of the solute and the volume of the solution

#C5.1b

describe the technique of titration

#C5.1c

explain the relationship between the volume of a solution of known concentration of a substance and the volume or concentration of another substance that react completely together

titration calculations

#C5.1d

describe the relationship between molar amounts of gases and their volumes and vice versa

#C5.1e

calculate the volumes of gases involved in reactions using the molar gas volume at room temperature and pressure (assumed to be 24 dm3)

#C5.1f

explain how the mass of a solute and the volume of the solution is related to the concentration of the solution

#C5.1g

calculate the theoretical amount of a product from a given amount of reactant

#C5.1h

calculate the percentage yield of a reaction product from the actual yield of a reaction

#C5.1i

define the atom economy of a reaction

#C5.1j

calculate the atom economy of a reaction to form a desired product from the balanced equation

#C5.1k

explain why a particular reaction pathway is chosen to produce a specified product given appropriate data

data such as atom economy (if not calculated), yield, rate, equilibrium position and usefulness of by-products