Answer :
The mass percentage of calamine in the solution is 10.93%
To find the mass percentage of calamine in the solution, we need to first identify the mass of calamine present in the solution and the total mass of the solution. In the given problem, we are given that the mass of calamine in the solution is 38.2 g, and the total mass of the solution is 349 g.
Mass percentage = (mass of calamine / total mass of solution) x 100%
Mass of calamine = 38.2 g
Total mass of solution = 349 g
Mass percentage = (38.2 g / 349 g) x 100%
Mass percentage = 10.93%
This means that out of the total mass of the solution, 10.93% of the mass is due to calamine.
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