Question

percent salt (mass of salt ÷ mass of mixture)x100 46.5 percent sand (mass of sand ÷ mass of mixture)x100 58/3 questions and conclusions 1. explain why water was added to the mixture. because it dissolves all the salt 2. explain why the solution was heated. to vaporize all the water and just leave the salt 3. list two reasons why the calculated percentages were different from the actual percentages of the sand - salt mixture. (two sources of error) 1. 2.

Explanation:

Possible sources of error include incomplete separation and loss of components during the experiment.

Answer:

1. Incomplete dissolution of salt, leaving some salt mixed with sand.
2. Loss of salt due to spattering during heating/evaporation.