HydrogenhardNUMERICAL

What is the total sum of all the atoms present in exactly of the complex hydride synthesized by the Hydrogen Chemistry Question

Question

What is the total sum of all the atoms present in exactly $1\text{ mole}$ of the complex hydride synthesized by the reaction of diborane ($B_2H_6$) with lithium hydride ($LiH$)?

Answer: 6

💡 Solution & Explanation

The reaction is $2LiH + B_2H_6 \rightarrow 2LiBH_4$. The complex hydride formed is Lithium borohydride ($LiBH_4$). A single molecule of $LiBH_4$ consists of $1$ Li, $1$ B, and $4$ H atoms. The total number of atoms in the formula unit is $1 + 1 + 4 = 6$.

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