Question

w w w .
chemistry: what is be volume 0, oxygen at s. t. p Will be obtained when 24.6g of potassium trioxochlorate (4) crystals are heated ? (o =16, k = 39, cl = 35.5)

Answer 1

potassium trioxochlorate (4) is not a correct IUPAC name for potassium chlorate.
2KClO3 ==> 2KCl + 3O2
mols KClO3 = g/molar mass = 24.6 g/122.6 = 0.200
mols O2 produced = 0.200 mols KClO3 x (3 mols O2/2 mols KClO3) = 0.200 x 3/2 = ?
Then ?mols O2 x 22.4 L/mol = ? L @ STP
Post your work if you get stuck. I THINK I've worked the problem you asked about but your English needs to be improved.