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  • On heating 0.199 g of a metallic oxide in a current of hydrogen 0.045 g of water is formed. Fi

On heating 0.199 g of a metallic oxide in a current of hydrogen 0.045 g of water is formed. Find the equivalent weight of the metal.

Option: 1

31.8


Option: 2

35.7


Option: 3

24.9


Option: 4

28.4


Answers (1)

best_answer

Weight of metallic oxide = 0.199 g

Now, as 16g of oxygen is present in 18 g of H2O

Thus, O2 present in 0.045 g of H2O = (16 X 0.045) / 18

                                                   = 0.04 g

Weight of metal = 0.199 - 0.04

                        = 0.159

Thus, the equivalent weight of metal = (0.159 X 8) / 0.04

                                                     = 31.8

 

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Riya

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