Question

A metal oxide contain s 60% metal ( by mass) The equivalent wt of metal is​

Answer 1

• 60%metal means the oxide contains 40%oxygen
• 100 g oxide contains 60g metal and 40g oxygen

equivalent weight of metal

=(60/40)×8=12

Answer 2

% of metal in metal oxide = 60 %

Thus% of oxygen = 100 - 60 = 40 %

If we take the basis of calculation to be 100g ,


•°• Equivalent wt. of metal =
mass of metal × Eq. wt. of oxygen
----------------------
mass of oxygen

•°• Eq. wt. of metal = 60 × 8
----
40
= 12

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