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Amount of NaOH needed to Raise the pH of a Solution

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A 2 part question ---- and the 2 parts are not inter-related:

1) I need to calculate the amount of NaOH (pH = 13.0) needed to raise the pH of a 3402 m3/minute wastewater flow from a pH of 4.3 to:

a) a pH of 6.0
b) and/or pH of 7.0

2) I cannot find anywhere a vapor pressure for CO2 in water at higher temperatures....I am specifically looking for the V.P. of CO2 at essentially 100 degrees C?

Can you help??

Many many thanks

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Calculations are performed to find the Amount of NaOH needed to Raise the pH of a Solution.

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1) I need to calculate the amount of NaOH (pH = 13.0) needed to raise the pH of a 3402 m3/minute wastewater flow from a pH of 4.3 to:
a) a pH of 6.0
This will give you the volume of NaOH that needs to be added to your waste water each minute.

First, calculate the moles of H+ in 3402 m3 of water that has pH 4.3.

pH = 4.3
[H+] = 5.0 x 10-5 mol/L

There are 103 L in 1 m3, so the volume we are dealing with is 3.402 x106 L

The moles of H+ is

Next, calculate [H+] in the same volume of water at pH= 6.0
pH = 6.0
[H+] = 1.0 x 10-6 mol/L

There are 103 L in 1 m3, so the volume we are ...

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