JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
\(A + 2B + 3C \rightleftharpoons A{B_2}{C_3}\) Reaction of \(6.0\, g\) of \(A\), \(6.0\times10^{23}\) atoms of \(B\), and \(0.036\, mol\) of \(C\) yields \(4.8\, g\) of compound \(AB_2C_3\) . If the atomic mass of \(A\) and \(C\) are \(60\) and \(80\, amu\), respectively, the atomic mass of \(B\) is .............. \(\mathrm{amu}\) (Avogadro no . \(= 6 \times10^{23}\))
- A \(50\)
- B \(60\)
- C \(70\)
- D \(40\)
Answer & Solution
Correct Answer
(A) \(50\)
Step-by-step Solution
Detailed explanation
\(A+3B+3C\rightleftharpoons A{{B}_{2}}{{C}_{3}}.....(1)\) No. of moles of \(A=\frac{6.0\,g}{60\,g/mol}=0.1\,mol\) No. of moles of \(B=\frac{6.00\times {{10}^{23}}}{6.000\times {{10}^{23}}}=1\,mol\) No. of moles of \(C = 0.036\) \(AB_2C_3\) formed accordingly to \(C\) which is a…
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