Question

how do we obtain anhydrous salt​

Answer 1

$\huge \mathfrak\purple{Answer}$

Moles water driven off: mass water (from above) / FW water = moles water • Moles anhydrous salt: mass anhydrous salt + crucible minus mass crucible = mass anhydrous salt then divide by 134.5 g/mol to get moles anhydrous salt.

Answer 2

Answer:

Moles water driven off: mass water (from above) / FW water = moles water • Moles anhydrous salt: mass anhydrous salt + crucible minus mass crucible = mass anhydrous salt then divide by 134.5 g/mol to get moles anhydrous salt.