A length of magnesium ribbon was added to 50 cm3
of sulfuric acid, concentration
1.0mol/dm3
. The time taken for the magnesium to react was measured. The experiment was
repeated with the same volume of different acids. In all these experiments, the acid was in
excess and the same length of magnesium ribbon was used.
experiment acid concentration
in mol/dm3 time / s
A sulfuric acid 1.0 20
B propanoic acid 0.5 230
C hydrochloric acid 1.0 40
D hydrochloric acid 0.5 80
(i) Write these experiments in order of reaction speed. Give the experiment with the fastest speed first.
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Answer:
The experiment was repeated with the same volume of different acids. In all these experiments, the acid was in excess and the same length of magnesium ribbon
Explanation:
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