How many grams of Magnesium metal will react completely with 6.3 liters of 4.5 M HCl?

Question

abb0t · Answer

Write the chemical equation: $\sf \color{red}{Mg^{2+} + HCl \rightarrow MgCl_2 + H^+}$ and balance it.

You can perform dimensional analysis. Start by converting 6.3 liters to moles (know that M = $\sf \color{blue}{\frac{mol}{L}}$. HINT: cross cancelling will be what you're doing here - think of Algebra and multiplying fractions and polynomials, etc.,

Then find the molar mass of magnesium (look at your periodic table). And you will get grams.