Question

va rog sa ma ajutati la ex asta, doar pct c​
ofer coroana,puncte și 5 stele

Answer 1

CaC2+2H20---> Ca(OH)2+C2H2

MCaC2=65g/mol

MC2H2=26g/mol

p=mp/mi*100 => mp/800*100=80 => mp=640kg CaC2= 640000g CaC2

64gCaC2...26gC2H2

640000gCaC2....xgC2H2

=>x=260000g C2H2 = 260kg C2H2

2C2H2+5O2---->4CO2+2H2O

1 mol....1255kJ

moli C2H2= 260000/26=10000 moli C2H2...ykJ

=> y=12,550*10^3 kJ