Find me the equivalent weight.

Chemistry Level 2

An oxide of metal has 20 percent oxygen. What is the equivalent weight of the metal oxide?


The answer is 40.

Skanda Prasad by Skanda Prasad , 20, India

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1 solution

Skanda Prasad
Oct 13, 2016

Let the mass of metal oxide = 100 g 100g

Therefore, mass of oxygen = 20 g 20g

So, mass of metal = 80 g 80g

No. of equivalents of oxygen = No. of equivalents of metal oxide.

m a s s o f o x y g e n e q u i v a l e n t m a s s o f o x y g e n = m a s s o f m e t a l o x i d e e q u i v a l e n t m a s s o f m e t a l o x i d e \dfrac{mass of oxygen}{equivalent mass of oxygen}\ = \dfrac{mass of metal oxide}{equivalent mass of metal oxide}

20 8 = 100 E \dfrac{20}{8}\ = \dfrac{100}{E}

Therefore, E = 40 E = 40

2 Helpful 0 Interesting 0 Brilliant 0 Confused

In metal oxide, we also have to take the equiv mass of oxide na?

Md Zuhair - 3 years, 6 months ago

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