A certain metal hydroxide, m (oh) 2, contains 32.8% oxygen by mass. what is the identity of the metal m? enter the full name of the element.

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Chemistry

Guillermo Murray

9 October, 19:01

A certain metal hydroxide, m (oh) 2, contains 32.8% oxygen by mass. what is the identity of the metal m? enter the full name of the element.

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Giuliana · Answer 1

Solution:[tex]Let the molar mass of metal M is 'a',/ / / rn (so) / / / frac{M_{o}}{2M_{H}+2M_{o}+a} = / frac{2.16}{2.1+2.16+a} = 0.328/ / By simple algebric calculation. We get,/ / a=63.56g/mol/ / / rn (Now,) / /

We have to confirm which metal has the molar mass of 63.56g/mol. By using periodic table we have to find it the we get it is Copper (Cu).