Question #8b77a

1 Answer
SupernovaT
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

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