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- The crucible is weighed and the exact mass is recorded.
- Approximately 0.2g of zinc is placed into the crucible and the crucible with its contain is weighed. The exact mass of zinc is determined.3)10 ml of 6M HCl solution is poured into a measuring cylinder.
- The 10 ml of 6M HCl solution is carefully added into the crucible containing zinc powder and the contents is stirred gently using a glass rod. A vigorous chemical reaction occurred and hydrogen gas is released. (This step is carried out in a fume cupboard.
