When washing soda remove in open air the only nine molecules of water get evoporate rather ten.

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Solution

when crystals of washing soda exposed to air,
Washing soda undergoes efflorescence and as a result loses nine molecules of water to form white powder

Na2CO3⋅10H2O→Na2CO3.H2O+9H2O

Washing soda washing powder

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Q. When kept in the open air, the crystals of washing soda lose nine molecules of water to form a monohydrate.

N a_{2} C O_{3} . 10 H_{2} O e x p o s e d - --- \to t o a i r N a_{2} C O_{3} . H_{2} O + 9 H_{2} O

This process is called:

Q. When crystals of washing soda are left open in air, they lose:

The number of molecules of water of crystallisation present in washing soda crystals is :

(a) five

(b) two

(d) seven

What happens when crystals of washing soda are left open in dry air ? What is this change named as ? Name two industries based on use of washing soda.

Q. Slide the number of water molecules present in washing soda.

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When washing soda remove in open air the only nine molecules of water get evoporate rather ten.

when crystals of washing soda exposed to air, Washing soda undergoes efflorescence and as a result loses nine molecules of water to form white powder Na2CO3⋅10H2O→Na2CO3.H2O+9H2O Washing soda washing powder

when crystals of washing soda exposed to air,
Washing soda undergoes efflorescence and as a result loses nine molecules of water to form white powder

Na2CO3⋅10H2O→Na2CO3.H2O+9H2O

Washing soda washing powder