M(P)=9.3г Q=223.8кДж Q-? 4P+5O2=2P2O5+Q

Question

M(P)=9.3г
Q=223.8кДж
Q-?
4P+5O2=2P2O5+Q

Answer 1

4P+5O2→2P2O5+Q
9.3 - 223.8
124 - x ( пропорция)
223.8×124
х= ---------------- =2984кДж
9.3