Ans: Mass of Mg is around 548 grams
Given:
Volume of HCl = 8.3 L
Molarity of HCl = 5.5 M
To determine:
The mass of Mg in grams
Explanation:
Chemical reaction
Mg + 2HCl ----- MgCl2 + H2
Based on the reaction stoichiometry:
1 mole of Mg reacts with 2 moles of Hcl
# moles of HCl = Molarity*volume = 5.5/8.3 = 45.65 moles
Therefore, moles of Mg = 1/2* moles of HCl = 45.65/2 = 22.83 moles
Atomic mass of Mg = 24 g/mol
Mass of Mg = 24 g/mol * 22.83 moles = 547.9 g
