2) Butane (C4H10) burns in oxygen to form carbon dioxide and water

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2) Butane (C4H10) burns in oxygen to form carbon dioxide and water. C4H10 + O2 + H2O + CO2 C4H10, MW = 58.84 H2O, MW = 18.02 O2, MW = 32.00 CO2, MW = 44.01 Calculate the mass of butane needed to produce 325 grams of carbon dioxide. 3. In an experiment, 125.0 g of PbSO4 are allowed to react with 250.0 g of LINO3, according to the following reaction: PbSO4 + LINO3 → Pb(NO3)2 + Li2SO4 MW (PbSO4) = 303.26 MW (Pb(NO3)2) = 331.21 MW (LINO3) = 68.95 MW (Li2SO4) = 109.94 Calculate the mass of Li2SO4 that is formed. 4. In the following oxidation-reduction reaction, identify the substance that is oxidized, the substance that is reduced, the oxidizing agent, and the reducing agent. 16 4NaOH(aq) + Ca(OH)2(aq) + C(s) + 4CIO, (g) → 4NaClO2(aq) + CaCO3(s) + 3H20(1)