A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2018 · Q311 Mark
Zinc reacts with hydrochloric acid according to the following equation. Zn + 2HCl → ZnCl2 + H2 Which statements are correct? 1 A 3.27 g sample of zinc reacts with an excess of hydrochloric acid to give 0.0500 mol of zinc chloride. 2 A 6.54 g sample of zinc reacts completely with exactly 100 cm³ of 1.00 mol dm⁻³ hydrochloric acid. 3 A 13.08 g sample of zinc reacts with an excess of hydrochloric acid to give 9.60 dm³ of hydrogen, measured at room conditions.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct answer
D: 1 only is correct
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