Calculating the volume of a certain number of moles
3 marks · EasyA student records the volume of a sample of hydrogen gas as 1800 cm³. Answer the following:
(a)[1 mark]
State the conversion factor from dm³ to cm³.
(b)[2 marks]
Convert 1800 cm³ to dm³.
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(a) 1000
(b) 1.8 dm³
Common mistakes: 1.8; 0.18
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Marking points
B1 (a) · 1 mark · States that to convert from dm³ to cm³, multiply by 1000 or gives '1000'.
M1 (b) · 1 mark · States or uses the formula: value in cm³ ÷ 1000 = value in dm³.
A1 (b) · 1 mark · Correctly calculates 1.8 dm³. (follow-through)
Worked solution
a) 1 dm³ = 1000 cm³, so the conversion factor is 1000.
b)