Question
The formula of magnesium chloride is MgCl_(2) The relative formula mass of magnesium chloride is 95. The relative atomic mass of magnesium is 24. (i) Use the equation to calculate the percentage mass of magnesium in magnesium chloride. Percentage mass of magnesium=(frac (mass of magnesium)/(mass of magnestum chloride)times 100% )(100% ) Percentage mass of magnesium in magnesium chlaride=underline ( )%
Answer
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Ellis
Master · Tutor for 5 years
Answer
Explanation
The equation given can be used to calculate the percentage mass of a constituent within a compound as it compares the mass of said constituent to the overall mass of the compound.As given, the relative atomic mass of magnesium is 24 and the relative formula mass of magnesium chloride (MgCl2) is 95.Hence, we plug in these values into the equation and calculate % mass of Magnesium in the compound Magnesium Chloride.