Question #8b77a

1 Answer
Dec 12, 2017

611g

Explanation:

Number of mols of Mg = #"mass (g)"/"Relative Molecular Mass (g per mol)"# = #156/24# = 6.5mols

Therefore, if we have 6.5mols of #Mg# as a reactant, we must have 6.5mols of #MgCl_2# as a product after the reaction.

We can rearrange the equation previously used to calculate the mass of 6.5mols of #MgCl_2#.

#"mass (g)" = "Relative Molecular mass (g per mol)" * "Number of mols"# = #94*6.5# = 611g