Verified Solution • 2025–26 Session moderate

QJEEM20Che86e: JEE Main 2020 Chemistry - Class 11 JEEM20Che86e Solution: NaClO 3 is used, even in spacecrafts, to produce O 2 . The…

NaClO3 is used, even in spacecrafts, to produce O2. The daily consumption of pure O2 by a person is 492L at 1 atm, 300K. How much amount of NaClO3, in grams, is required to produce O2 for the daily consumption of a person at 1 atm, 300 K?
NaClO3(s) + Fe(s) → O2(g) + NaCl(s) + FeO(s)
R = 0.082 L atm mol–1 K–1

Step-by-Step Verified Solution

NaClO3(s) + Fe(s) → NaCl(s) + FeO(s) + O2(g)

moles of NaClO3 = moles of O2

moles of O2 = PVRT = 1×4920.082×300 = 20 mol

mass of NaClO3 = 20 × 106.5 = 2130 g

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