NaOH + HCl = NaCl + H2Om(HCl)=m(NaOH)/M(NaOH)*M(HCl)=300*0.05/40*36.5=13.7 граммm(HCl) раствора = (13.7*100)/8= 171.25m(NaCl)=22гm получившегося раствора=300+171.25=471.25гw=22/471.250.047 или 4.7%22/x=0.2x=110m(H2O)= 471.25-110=361.25г
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NaOH + HCl = NaCl + H2O
m(HCl)=m(NaOH)/M(NaOH)*M(HCl)=300*0.05/40*36.5=13.7 грамм
m(HCl) раствора = (13.7*100)/8= 171.25
m(NaCl)=22г
m получившегося раствора=300+171.25=471.25г
w=22/471.250.047 или 4.7%
22/x=0.2
x=110
m(H2O)= 471.25-110=361.25г