A 82.8 g mixture of the compounds calcium sulfide (CaS) and magnesium bromide (M

Question

A 82.8 g mixture of the compounds calcium sulfide (CaS) and magnesium bromide (MgBr2) is 12.6% by mass magnesium bromide . The compound magnesium bromide is 13.2% by mass magnesium. Calculate the mass (g) of magnesium in the mixture.


Percent Mass % = Mass part A 82.8 g mixture of the compounds calcium sulfide (CaS) and magnesium bromide (MgBr2) is 12.6% by mass magnesium bromide . The compound magnesium bromide is 13.2% by mass magnesium. Calculate the mass (g) of magnesium in the mixture.


Percent Mass % = Mass part

Explanation / Answer

12.6= mass of magnesium bromide/82.8 *100 mass of magnesium bromide= 10.438g 13.2= mass of magnesium/10.438 *100 mass of magnesium =1.37g mass of magnesium in the mixture = 1.37g

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