First, we calculate the moles of O₂ (g) that are needed from the state equation for an ideal gas: P. V = n. RT. Then we convert the temperature (T) to Kelvin (K). What is the next step in the calculation?
a) Calculate the moles of KMnO₄(s)
b) Determine the molar mass of O₂(g)
c) Calculate the mass of O₂(g)
d) Convert pressure (P) to atm