Chemistry > 2012 > 29
JAMB UTME
The highest rate of production of carbon(IV)oxide can be achieved using
A.
0.05 mol dm-3 HCl and 5g powdered CaCO3
B.
0.05 mol dm-3 HCl and 5g lump CaCO3
C.
0.10 mol dm-3 HCl and 5g powdered CaCO3
D.
0.025 mol dm-3 HCl and 5g powdered CaCO3
Answer: C
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