What volume of oxygen., measured at STP can be prepared by heating 2.16 g HgO? Write the decomposition reaction.

What volume of oxygen., measured at STP can be prepared by heating 2.1

1.	What volume of oxygen., measured at STP can be prepared by heating 2.16 g HgO? Write the decomposition reaction.
Answer» Explanation:2HgO -> 2Hg + O2by their ATOMIC masses, 434g of mercury oxide gives 32G of O2 and 402g of mercury by law of constant proportions, 432g of mercury oxide gives 32g of O2 = 13.24g of HgO give how many g of O2 GS of O2 is 32 * 13.24/432 is approximately 0.976g 0.976g contains 0.03 moles of oxygen hence VOL is 0.683litre