An excess amount of calcium carbonate is added to dilute hydrochloric acid, X. The carbon dioxide gas released is collected, and its volume is measured at regular time intervals. Line X on the graph represents the results obtained. The experiment is carried out again using dilute hydrochloric acid, Y. Line Y on the graph represents the results obtained. Which statement about the two hydrochloric acid samples, X and Y, is correct?
- AThey had the same volume but Y had higher concentration.
- BThey had the same concentration but Y had a larger volume.
- CX had a higher concentration but Y had a larger volume.
- DY had a higher concentration but X had a larger volume.