mole ratio of CaSO4.2H2O
see below
To determine the mole ratio of CaSO4.2H2O, we need to look at the chemical formula and identify the number of moles of each element or compound present.
In the given formula, CaSO4.2H2O, we have:
1 mole of CaSO4 (calcium sulfate)
2 moles of H2O (water)
This means that for every 1 mole of calcium sulfate (CaSO4), we have 2 moles of water (H2O).
Therefore, the mole ratio of CaSO4 to H2O in CaSO4.2H2O is 1:2.