Question

when 19.55 g of solid k dissociates in 500.0 g of water in a coffee cup calorimeter, the temperature increases from 20.0 °c to 61.5 °c.
$c_{sol}$ = 4.18 j/g °c
what is the mass of the solution?
$\text{mass}_{soln}$ = ? g

Explanation:

Step1: Identify masses of solute and solvent

Mass of solute (K) = 19.55 g, Mass of solvent (water) = 500.0 g.

Step2: Calculate mass of solution

Mass of solution = Mass of solute + Mass of solvent.
So, \( \text{mass}_{\text{soln}} = 19.55\ \text{g} + 500.0\ \text{g} \)
\( \text{mass}_{\text{soln}} = 519.55\ \text{g} \)

Answer:

519.55