Reversing the calculations
2 marks · EasyCalculate the volume in cm³ of 0.150 mol/dm³ sulfuric acid solution that contains 0.0300 mol of sulfuric acid.
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200 cm³ (±1)
Common mistakes: not converting from dm³ to cm³; using incorrect formula
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Marking points
M1 · 1 mark · Rearranges concentration equation and correctly substitutes values: volume (dm³) = moles / concentration; 0.0300 / 0.150
A1 · 1 mark · Converts final answer to cm³ by multiplying by 1000; answer = 200 cm³
Worked solution
Volume (dm³) = moles / concentration = 0.0300 / 0.150 = 0.200 dm³
Convert to cm³: 0.200 dm³ × 1000 = 200 cm³