CO₂:
V=224cm³=0.224dm³
1mol ----- 22.4 dm³
x ----- 0.224dm³
x = 0.01mol
======================
CO₂ + 2NaOH ⇒ Na₂CO₃ + H₂O
____ ______
1mol : 2mol
0.01mol : 0.02mol
=======================
NaOH:
n=0.02mol
M=40g/mol
m = 0.02mol*40g/mol = 0.8g
ms = 0.8g
Cp = 20%
mr = 0.8g/0.2 = 4g
d = 1.22g/cm³
mr = 4g
Vr = 4g/1.22g/cm³ ≈ 3.28cm³
Odp.: Przereaguje ok. 3.28cm³ tego roztworu.
Pozdrawiam :)
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CO₂:
V=224cm³=0.224dm³
1mol ----- 22.4 dm³
x ----- 0.224dm³
x = 0.01mol
======================
CO₂ + 2NaOH ⇒ Na₂CO₃ + H₂O
____ ______
1mol : 2mol
0.01mol : 0.02mol
=======================
NaOH:
n=0.02mol
M=40g/mol
m = 0.02mol*40g/mol = 0.8g
ms = 0.8g
Cp = 20%
mr = 0.8g/0.2 = 4g
d = 1.22g/cm³
mr = 4g
Vr = 4g/1.22g/cm³ ≈ 3.28cm³
Odp.: Przereaguje ok. 3.28cm³ tego roztworu.
Pozdrawiam :)