The combustion of a 18.4 g sample of sodium in chlorine resulted in the release of 328.88 kJ of heat.
| November 29, 2020 | education
The combustion of a 18.4 g sample of sodium in chlorine resulted in the release of 328.88 kJ of heat. Based on these data, write the thermochemical equation for the combustion of sodium in chlorine.
2Na + Cl2 = 2NaCl
n (Na) = 18.4 / 23 = 0.8 mol
make up the proportion
0.8 mol sodium – 328, 88 kJ
2 mol sodium – х kJ
x = 822.2 kJ
2Na + Cl2 = 2NaCl + 822.2 kJ
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