Posted by Donald on Thursday, March 5, 2009 at 10:22pm.
Write the equation and balance it.
2KClO3 ==> 2KCl + 3O2
1. Convert g KClO3 to moles. # moles = grams/molar mass.
2. Using the coefficients in the balanced equation, convert moles KClO3 to moles O2.
3. Convert moles O2 to volume remembering at STP that 22.4 L/mole x # moles = ?? L.
Post your work if you get stuck.
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