Styrene (S) and butadiene (B) are copolymerized in an isothermal batch reactor. The 27 m3 reactor was charged with 2,200 kg of styrene and 5,000 kg of butadiene. The polymerization is first order in S and first order in B and k = 0.036 m3/(kmol-h). The reaction is S + 3.2 B → polymer and constant density is assumed. What are the concentrations of S and B after 10 h?