pH calculation for sodium bicarbonate using a quartic equation; pCO₂ is also at 40°C
Author: kegasaExecutions: 35
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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]);
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]);
| 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
https://chemist-eyes.com/lecture/acidbase_calph05
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Calculating the pH of sodium bicarbonate (baking soda) using a quartic equation
Practical pH Calculations (Amphoteric Electrolytes)