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The reaction between yttrium metal and dil HCl produces H2S and Y3+ ions. The molar ratio of yttrium to that hydrogen produced is?

The reaction between yttrium metal and dil HCl produces H2S and Y3+ ions. The molar ratio of yttrium to that hydrogen produced is?

Grade:12

1 Answers

Vikas TU
14149 Points
7 years ago
The reaction goes like:
 Y     +       dil. HCl -------------->             H2S        +        Y3+
In this case the molar ratio would be the ratio of their valence factors.
Hence,Valence factor for Y => 3- 0 = +3
and
Valence factor for H => +1
Hence, ratio => 3/1 => 3:1

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