Based on moles of hcl reacted, determine the grams of magnesium.
To determine the grams of magnesium reacted, you need to use the stoichiometry of the reaction between hydrochloric acid (HCl) and magnesium (Mg).
The balanced chemical equation for the reaction is:
Mg + 2HCl --> MgCl2 + H2
From the balanced equation, we can see that 1 mole of magnesium reacts with 2 moles of hydrochloric acid.
If you have the moles of HCl reacted, you can use the stoichiometry to find the moles of magnesium reacted and then convert that to grams of magnesium.
For example, if you have 0.5 moles of HCl reacted:
0.5 moles HCl * (1 mole Mg / 2 moles HCl) = 0.25 moles Mg
Next, you can use the molar mass of magnesium (24.31 g/mol) to convert moles to grams:
0.25 moles Mg * 24.31 g/mol = 6.08 grams of magnesium
Therefore, if you have 0.5 moles of HCl reacted, you would have reacted 6.08 grams of magnesium.