<span>2Na+O2=Na2O2 </span>
<span>Na2O2+2Na=2Na2O</span>
<span><span>Na2O+H2O=2NaOH</span></span>
<span><span><span>Na2O + Co2 = Na2CO3</span></span></span>
<span><span><span><span>3NaOH+H3PO4=Na3PO4+3H2O</span></span></span></span>
<span><span><span><span>2) m(CaCo3)=100кг</span></span></span></span>
<span><span><span><span> w(CaCo3)=80%</span></span></span></span>
<span><span><span><span> V-?</span></span></span></span>
<span><span><span><span><span>Найдем массу известняка 100*0,8 = 80кг, это составляет 0,8 моль</span></span></span></span></span>
<span><span><span><span><span>0.8мол 0.8моль</span></span></span></span></span>
<span><span><span><span><span>CaCo3-> CaO +Co2</span></span></span></span></span>
100г/моль 56г/моль
<span><span><span><span><span> CaO+h20=ca(oh)2</span></span></span></span></span>
<span><span><span><span><span>m(ca(oh)2)=<span>0,8моль* 74кг/моль=<span>59,2кг Молярная масса ca(oh)2=74г/моль</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span>выход от теоретически возможного= 59,2*0,8 = 47,36кг</span></span></span></span></span></span></span></span>