Consider the following reactions:3NiS + 2HNO_ | vedclass

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(B) The product $B$ is nickel dimethylglyoximate,$[Ni(dmg)_2]$.The structure of $B$ contains two dimethylglyoximate ligands coordinated to the $Ni^{2+

Vedclass · Accepted Answer

$12$

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(B) The product $B$ is nickel dimethylglyoximate,$[Ni(dmg)_2]$.The structure of $B$ contains two dimethylglyoximate ligands coordinated to the $Ni^{2+}$ ion.Each dimethylglyoximate ligand has the formula $C_4H_7N_2O_2^-$.In the complex $[Ni(C_4H_7N_2O_2)_2]$,there are a total of $2 	imes 7 = 14$ hydrogen atoms (protons) from the two ligands.In the structure of the complex,there are two intramolecular hydrogen bonds formed between the oxygen atoms of the two ligands.These two hydrogen bonds involve two protons.Therefore,the number of protons not involved in hydrogen bonding is $14 - 2 = 12$.

Consider the following reactions:
$3NiS + 2HNO_3 + 6HCl \rightarrow 3NiCl_2 + 2NO + 3S + 4H_2O$
$NiCl_2 + 2NH_4OH + 2(CH_3C(=NOH)C(=NOH)CH_3) \rightarrow B + 2NH_4Cl + 4H_2O$
The number of protons that do not involve in hydrogen bonding in the product $B$ is:

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Consider the following reactions:$3NiS + 2HNO_3 + 6HCl \rightarrow 3NiCl_2 + 2NO + 3S + 4H_2O$$NiCl_2 + 2NH_4OH + 2(CH_3C(=NOH)C(=NOH)CH_3) \rightarrow B + 2NH_4Cl + 4H_2O$The number of protons that do not involve in hydrogen bonding in the product $B$ is: