(Solved): The melting point composition diagram for substances, A and B is provided below. The molecular wei ...

The melting point composition diagram for substances, $\mathrm{A}$ and $\mathrm{B}$ is provided below. The molecular weight of $\mathrm{A}=101.01\mathrm{g}/\mathrm{mol}$ and that of $\mathrm{B}=97.14\mathrm{g}/\mathrm{mol}$. Use the diagram and corresponding information to answer questions 1 and 2 : 1. What is the melting point of a sample obtained from a mixture of $9.09\mathrm{g}$ of compound $\mathbf{A}$ and $20.40\mathrm{g}$ of compound $\mathbf{B}$ ? A. $86^{?}\mathrm{C}$ B. $56^{?}\mathrm{C}$ C. $81^{?}\mathrm{C}$ D. $70^{?}\mathrm{C}$ E. $62^{?}\mathrm{C}$