Răspuns:
c=mdx100/ms
md= cxms/100=36,5x600./100g=36,5x6g
niu=m/M= 36,5X6/36,5mol= 6mol HCL
deduc moli NaOH din ecuatia chimica
NaOH + HCl----> NaCl + H2O
1mol.........1mol
x.................6mol
x= 6molNaOH
DACA se cere masa, NaOH,
m=niuxM=6molx40g/mol= 240gNaOH
Explicație: