Sol . As Mass of sand = 5.432 g
and Mass of salt = 2.521 g
So , Total mass of mixture = Mass of sand + Mass of salt = 5.432 g + 2.521 g = 7.953 g
Therefore , Percentage of salt in the mixture
= (Mass of salt × 100)/Total mass of mixture
= (2.521 × 100)/7.953 = 31.70 %
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