Answer :
Final answer:
To calculate the %(m/m) of the solution, divide the mass of the solute (lithium fluoride) by the mass of the solution and multiply by 100%.
Explanation:
To calculate the %(m/m) of the solution, you need to determine the mass of the solute (lithium fluoride) and the mass of the solution (lithium fluoride + water).
Mass of lithium fluoride = 41.5 g
Mass of water = 98.5 g
Mass of solution = Mass of lithium fluoride + Mass of water
= 41.5 g + 98.5 g
= 140 g
%(m/m) of lithium fluoride = (Mass of lithium fluoride / Mass of solution) x 100%
= (41.5 g / 140 g) x 100%
= 29.64%
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