PbS is heated in air to form lead ii oxide 2PbS(s) - вопрос №21023889232222 от alenasher1try 28.07.2022 07:47

Question

Химия: PbS is heated in air to form lead ii oxide 2PbS(s) + 3O2(g) = 2PbS(s) + 2SO2(g) H = -827.2 kJ. What mass of PbO is produced if 0.49 MJ of heat are emitted?

alenasher1try · Answer

2.24Объяснение:m(PBS)=23.9 gV(SO2)-?2PBS+3O2=2PbO+2SO2n(PBS)=m/M=23.9 g/239 g/mol=0.1 moln(PbS)=n(SO2)=0.1 molV(SO2)=Vm*n=22.4 l/mol*0.1 mol=2.24 l...