2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
Ca(OH)2 + CuSO4 = CaSO4 + Cu(OH)2 (в осадок)
3CaSO4 + 2H3PO4 = Ca3(PO4)2 + 3H2 (газ)
CuSO4+2NaOH=Cu(OH)2+Na2SO4
m(чист CuSO4)=w*m=0.15*160=24г.
n(CuSO4)=m/M=24/160=0.15моль
по условиям CuSO4 в недостатке.
n(CuSO4)=n(Cu(OH)2)
m(Cu(OH)2)=0.15*98=14.7г
<span>P</span><span>2</span><span>O</span><span>5 --------------><span> </span><span>Na</span><span>3</span><span>P</span><span>О4 ------><span>H</span><span>3</span><span>PO</span><span>4</span></span></span>
CnH2n-2+3n-1/2O2=nCO2+H20
n=4,48/22,4=0,2 моль
n=7,2/18=0,4 моль
n=3
C3H4 пропил