Question

How much gram of Qxygen is present in the crystal water of 1 mole blue vitriol?​

Answer 1

Answer:

1mol of a substance contains 6.022x10^23 particles (atoms or molecules), which is known as Avogadro’s Number – after Count Amadeo Carlo Avogadro (1776 – 1856)

In this case, we have 6.022x10^23 molecules of copper sulfate pentahydrate, CuSO4•5H2O

Clearly, each molecule contains 5 atoms of oxygen, so there are

5 x 6.022x10^23 = 3.011x10^24 oxygen atoms

So 1mol of CuSO4•5H2O contains 3.011x10^24 oxygen atoms.