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1. |
The enthalpy of the reaction forming \[PbO\] according to the following equation is \[438\text{ }kJ\]. What heat energy (kJ) is released in formation of \[22.3g\,PbO\left( s \right)\] ? (Atomic masses: \[Pb=207,\text{ O}=16.0\]) \[2Pb\left( s \right)+{{O}_{2}}\left( g \right)\xrightarrow{{}}2PbO\left( s \right)\] |
A. | 21.9 |
B. | 28.7 |
C. | 14.6 |
D. | 34.2 |
Answer» B. 28.7 | |