Question

A crystalline substance on exposure to air loses it's water of crystallization and turns into white opaque powder .This powder is used for washing purposes. Name the powder and it's formulae

Answer 1

The crystalline substance is Na2CO3. 10H2O.

• The powder obtained from the crystalline substance is washing soda i. e. sodium carbonate.
• It's molecular formula :- Na2CO3.

Answer 2

$THE \: \: \: POWDER \: FORMED \: \: \: \\ IS \: \: SODIUM \: CARBONATE \: \: DECAHYDRATE.. \: \\ </p><p></p><p>ITS \: \: FORMULA \: \: IS \: \: \\ NA2CO3.10H20$

Thank you ....