Atoms and Molec...

The percentage of water of crystallisation in CuSO₄.5H₂O is

Which has the maximum number of atoms?

8 g of O₂ has the same number of molecules as

A sample of pure water, irrespective of source, contains 88.89% oxygen and 11.11% hydrogen by mass. The data supports the

10 g of CaCO₃ on heating gave 4.4 g of CO₂ and 5.6 g of CaO. The observation is in agreement with the

The atomic mass of potassium is 39. The number of moles in 78 g of potassium is

The mass of sodium in 11.7 g of sodium chloride is

The correct formula of aluminium sulphate is

The formula unit mass of Na₂SO₄.10H₂O is

An element A is tetravalent and element B is divalent. The formula of the compound formed by these two elements is