and one mole of hydrogen gas. 4.5.2.6 Many chemical MS 1c, 3c 0.5 Explain the meaning of To demonstrate the idea Video clip reactions take place in concentration and the unit of concentration pupils (HT Pupils should be able to: YouTube: solutions. The grams per dm3 . could make different only) explain how the mass of concentration of a concentrations of tea, Be able to convert cm3 into a solute and the volume solution can be coffee or a dark squash dm3 . of a solution is related to measured in mass per like blackcurrant. the concentration of the Use the equation: given volume of Pupils often confuse the solution solution, eg grams per concept of calculate the mass of dm3 (g/dm3). with ‘concentration’ to calculate the concentration solute in a given volume ‘strength’. of a solution. of solution of known concentration in terms of Rearrange the equation: mass per given volume of solution. to make mass the subject. Extended writing: Write instructions to another student on how to calculate the concentration, or how to rearrange the equation to calculate mass. Discuss the differences of the word and ‘concentration’
and one mole of hydrogen gas. 4.5.2.6 (HT only) Many chemical reactions take place in solutions. The concentration of a solution can be measured in mass per given volume of solution, eg grams per dm3 (g/dm3). MS 1c, 3c Pupils should be able to: explain how the mass of a solute and the volume of a solution is related to the concentration of the solution calculate the mass of solute in a given volume of solution of known concentration in terms of mass per given volume of solution. 0.5 Explain the meaning of concentration and the unit grams per dm3 . Be able to convert cm3 into dm3 . Use the equation: to calculate the concentration of a solution. Rearrange the equation: to make mass the subject. Extended writing: Write instructions to another student on how to calculate the concentration, or how to rearrange the equation to calculate mass. Discuss the differences of the word ‘concentration’ and To demonstrate the idea of concentration pupils could make different concentrations of tea, coffee or a dark squash like blackcurrant. Pupils often confuse the concept of ‘concentration’ with ‘strength’. Video clip YouTube:
AQA-8465-SOW-BUND.DOCX