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Atomic Mass

why should we...

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why should we take the equivalent weight of oxygen as 8 when copper is oxidised to give copper oxide?

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Q. When an oxide

{M_{2} O}_{3}

{M_{2} O}_{5}

, then its equivalent weight becomes:

Q. When an oxide

M_{2} O_{3}

M_{2} O_{5}

, then what is its equivalent weight ?

127 g

of copper reacts with

32 g

of oxygen gas to form copper (II) oxide, no copper or oxygen is left over. How much copper (II) oxide is produced?

Q. What are the products formed when ammonia is oxidised with copper oxide?

4 g

of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave

5 g

of its oxide. The equivalent weight of copper is :

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