Question 1.
0.5 g of salt is dissolved in 25 g of water. Calculate the percentage amount of the salt in the solution.
Question 2.
A solution of urea in water contains 16 grams of it in 120 grams of solution. Find out the mass percentage.
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Explanation:
Answer. Total mass = 0.5+25=25.5%=0.5/25.5+×100=1.9607%. The value can be calculated with the amount of salt in that solution that gives answers percentage with dissolved in 25g of water.
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