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4.60 mol of solid A was placed in a sealed 1.00-L container and allowed to decompose...

4.60 mol of solid A was placed in a sealed 1.00-L container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.10 M, where it remained constant.

A(s)=B(g)+C(g)

Then, the container volume was doubled and equilibrium was re-established. How many moles of A remain

? mol A

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