Question 1187140
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<pre>

Use the gas law  pV = const,  which gives you


    pV = {{{p[2]*V[2]}}},

or

    500*300 = {{{200*V[2]}}}.


Then  {{{V[2]}}} = {{{(500*300)/200}}} = 750 mL.    <U>ANSWER</U>
</pre>

Solved and explained.