HCl+NaOH=NaCl+ Н2О
M(HCl)=36,5
M(NaOH)=40
m(примесей)=160*5%/100%=8г
m(NaOH)=160-8=152г
Х/36,5=152/40
Х=138,7г
m(HCl)=138,7*100%/20%=693,5г
HCl+NaOH=NaCl+ Н2О
M(HCl)=36,5
M(NaOH)=40
m(примесей)=160*5%/100%=8г
m(NaOH)=160-8=152г
Х/36,5=152/40
Х=138,7г
m(HCl)=138,7*100%/20%=693,5г