Elemental magnesium reacts with excess 1.0 M HCl(aq) to produce H₂(g)
CHEMISTRY · Multi-part · A Level · Chemistry · Kinetics · Kinetics
Problem
Elemental magnesium reacts with excess 1.0 M HCl(aq) to produce H₂(g). Four separate experiments are summarized below.| Experiment | Form of Mg(s) | Temperature (°C) | Concentration of HCl (M) | Added Substance |
|---|---|---|---|---|
| A | Ribbon | 25 | 1.0 | None |
| B | Powder | 25 | 1.0 | None |
| C | Ribbon | 40 | 1.0 | None |
| D | Ribbon | 25 | 1.0 | 0.010 M Na₂SO₄ (acts as an inhibitor by forming a surface layer) |