P and Q

Chemistry Level 3

\(\ce P\) and \(\ce Q\) are two elements which form \(\ce{P2Q3}\) and \(\ce{PQ2}\) molecules. If \(0.15\text{ mole}\) of \(\ce{P2Q3}\) and \(\ce{PQ2}\) weighs \(15.9\text{ g}\) and \(9.3\text{ g}\), respectively, what is the sum of atomic masses of \(\ce P\) and \(\ce Q\) ?

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