CSEC Chemistry · May/June 2010 · Paper 1 · Question Q7
2\text{ g} of magnesium are reacted with excess dilute acid according to the equation
\text{Mg(s)} + 2\text{H}^+\text{(aq)} \rightarrow \text{Mg}^{2+}\text{(aq)} + \text{H}_2\text{(g)}
(Relative atomic mass of \text{Mg} = 24, molar volume at room temperature and pressure = 24\text{ dm}^3)
The volume of hydrogen, measured at room temperature and pressure, that is produced is
- (A)
1\ 000\text{ cm}^3 - (B)
1\ 500\text{ cm}^3 - (C)
2\ 000\text{ cm}^3 - (D)
24\ 000\text{ cm}^3
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