a certain metal hydroxide, m(oh)2, contains 32.8% oxygen by mass. what is the identity of the metal m?
1 answer:
Total mass = x
It would be: x*32.38/100 = 32
x = 3200/32.38 = 97.56
Atomic mass of (OH)2 = 34
So, remaining mass = 97.56-34 = 63.56
which is approximately equal to mass of copper
So, we can say m is copper here, and formula of the compound would be Cu(OH)2
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