Final answer:
There are 20 moles of water in 5 moles of Tungsten(V)oxalate tetrahydrate.
Step-by-step explanation:
To determine the number of moles of water in 5 moles of Tungsten(V)oxalate tetrahydrate, we need to examine the chemical formula of the compound.
Tungsten(V)oxalate tetrahydrate is represented as W(

)5(
).
From the formula, we can see that there are 4 moles of water molecules for every 1 mole of Tungsten(V)oxalate tetrahydrate.
Therefore, in 5 moles of the compound, there would be 4 x 5 = 20 moles of water.