(Solved): The Mole Concept: Chemical Formula of a Hydrate - Lab Report Exercise 1: Water of Hydration Data Ta ...

The Mole Concept: Chemical Formula of a Hydrate - Lab Report Exercise 1: Water of Hydration Data Table 1. Alum Data. A) Calculate the moles of anhydrous (dry) ${\mathrm{KAl}}_1{\left({\mathrm{SO}}_4\right)}_2$ that were present in the sample. (Show all calculations including units.) B) Calculate the ratio of moles of ${\mathrm{H}}_2\mathrm{O}$ to moles of anhydrous ${\mathrm{KAl}}_{(}{\left({\mathrm{SO}}_4\right)}_2$. Note: Report the ratio to the closest whole number. (Show all work including units) C) Write the empirical formula for the hydrated ${\mathrm{KAl}}_2{\left({\mathrm{SO}}_4\right)}_2$, based on your experimental results and answer to Question 2. Hint: If the ratio of moles of ${\mathrm{H}}_2\mathrm{O}$ to moles of anhydrous ${{\mathrm{KAl}}^{\mathrm{S}}{\mathrm{SO}}_4)}_2$ was 4 , then the empirical formula would be: $\mathrm{KAl}{\left({\mathrm{SO}}_4\right)}_2?4{\mathrm{H}}_2\mathrm{O}$.