Question

Empirical formula weight of borazine is \[ (\text{At. wt: }H=1\ \text{u},\ B=10.8\ \text{u},\ N=14\ \text{u}) \]

• A. \(13.0\)
• B. \(13.4\)
• C. \(26.8\)
• D. \(40.2\)

Hint:

Borazine is called \[ \boxed{\text{Inorganic benzene}} \] and has the molecular formula \[ \boxed{\mathrm{B_3N_3H_6}.} \] Its empirical formula is \[ \boxed{\mathrm{BNH_2}.} \]

Answer 1

The Correct Option is C

Step 1: Write the molecular formula of borazine. Borazine has the molecular formula \[ \mathrm{B_3N_3H_6}. \] Dividing the subscripts by \(3\), the empirical formula is \[ \boxed{\mathrm{BNH_2}}. \]

Step 2: Calculate the empirical formula weight. \[ \text{Empirical formula weight} = 10.8+14+2(1). \] \[ =26.8\ \text{u}. \]

Step 3: Write the answer. Hence, \[ \boxed{26.8}. \] Thus, \[ \boxed{(C)} \] is the correct answer.