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Chlorine gas is used in the production of many other chemicals, including carbon tetrachloride, polyvinyl chloride plastic, and hydrochloric acid. It is produced from the electrolysis of molten sodium chloride.
2 NaCl(l) → 2 Na(l) + Cl_2(g)
What minimum mass of sodium chloride in megagrams is necessary to make 2.4*10^5 L of chlorine gas at standard temperature and pressure, STP?
1 Answer
- 8 years agoFavorite Answer
PV= nRT
STP = 1atm pressure and 273K (0 degrees C)
We are looking for moles of chlorine gas. The formula will look like PV/RT = n
(1atm)(2.4x10^5L)/(0.0821 liter·atm/mol·K) ( 273K) =10707.93mol Cl2
10707.93mol Cl2 * 2mol NaCl /1 mol Chlorine gas =21415.86mol NaCl.
21415.86mol NaCl * 58.44 g / 1mol = 1251542g
1.251542 megagrams = 1251542 grams