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pH Calculations for Sodium Bicarbonate (Baking Soda) Using a Fourth-Degree Equation, Including pCO₂

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Quartic Equation Function
Calculating the pH of sodium bicarbonate (baking soda) using a quartic equation
Practical pH Calculations (Amphoteric Electrolytes)
a = 1;
b = (Cs - Kw);
c = Ka1*Ka2;
d = -Cs*Ka1*Ka2 - Kw*Ka1;
ee = -Ka1*Ka2*Kw;

numeric x[] = {0,1,2,3};

quarticEquation(a, b, c, d, ee, x);

print(x[0]);
print(x[1]);
print(x[2]);
print(x[3]);
Cs
mol/L
Kw
Ka1
Ka2
K1
K2
K0
Water temperature 25°C
x[0] 
x[1] 
x[2] 
x[3] 
pH 
Hp μmol/L
[H₂CO₃] %
[HCO3-] %
[CO32-] %
pCO₂ ppm
NaHCO3 mg/L84 g/mol
Practical pH Calculations (Amphoteric Electrolytes)
https://chemist-eyes.com/lecture/acidbase_calph05

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