An 8.51g sample of an unknown salt is dissolved in 150g water in a coffee cup calorimeter, leading to a temperature increase from 23.7 °C to 28.54 °C. The mass of the formed solution is 159 g.
An 8.51g sample of an unknown salt (MM=116.82g/mol) is dissolved in 150g water in a coffee cup calorimeter. This means that we have a solution formed by 8.51 g of solute and 150 g of solvent. The mass of the solution is equal to the sum of the mass of the solute and the mass of the solvent.
[tex]m = m_{solute} + m_{solvent} = 8.51 g + 150 g = 159 g[/tex]
The mass of the solution does not vary with the change in the temperature caused by the solution of the salt.
An 8.51g sample of an unknown salt is dissolved in 150g water in a coffee cup calorimeter, leading to a temperature increase from 23.7 °C to 28.54 °C. The mass of the formed solution is 159 g.
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