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Grade: 12th pass

                        

Washing soda loses its water of crystallization on standing due to efflorescence.Calculate percentage loss in weight that washing soda undergoes on standing?​

one month ago

Answers : (1)

ats
102 Points
							
The formula of washing soda is Na2CO3.10H2O
On standing it loses its water of crystalisation and becomes Na2CO3
Gram Molecular Weight of one mole of washing soda (Na2CO3.10H2O) = 286 g
Weight of water lost from one mole of washing soda due to standing = 10 x 18
                                                                                                             =180 g
Percentage loss in weight = (180÷286) x 100
                                          = 62.94%
 
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one month ago
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