Răspuns:
Explicație:
10 g NaOH
react. cu HCl
V HCl
10g xg
NaOH +HCl = NaCl + H2O
40g 36,5 g
x= 10 . 36,5 : 40 =9, 125 g HCl
n = m : M
M HCl= 1 + 35,5= 36,5------> 36,5 g/moli
n= 9,125 g : 36,5g/moli =0,25 moli HCl
V= 0,25moli .22,4 L/moli=5,6 L HCl
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Răspuns:
Explicație:
10 g NaOH
react. cu HCl
V HCl
10g xg
NaOH +HCl = NaCl + H2O
40g 36,5 g
x= 10 . 36,5 : 40 =9, 125 g HCl
n = m : M
M HCl= 1 + 35,5= 36,5------> 36,5 g/moli
n= 9,125 g : 36,5g/moli =0,25 moli HCl
V= 0,25moli .22,4 L/moli=5,6 L HCl