Washing soda on standing in air effloresced. How many water molecules are lost ?

Washing soda on standing in air effloresces. How many water molecules are lost

The decahydrate form of sodium carbonate i.e. washing soda on standing in air effloresces and crumbles to powder. The number of water molecule (s) present in the compound formed is :

The decahydrate form of sodium carbonate i.e. washing soda on standing in air effloresces and crumbles to powder. The number of water molecule (s) present in the compound formed is :

The decahydrate form of sodium carbonate i.e. washing soda on starding in air effloresces and crumbles to powder.The number of water molecule(s) present in the compound formed is:

How many water molecules are present in washing soda?

State the number of water molecules present in crystals of washing soda and plaster of paris. What are these water molecules called as?

State the number of water molecules present in crystal of washing soda and plaster of paris. What are these water molecules called as?