I have 60,000 LBS of a NaOH solution with a pH of 12.6. I need to be able to calculate the amount of 25% H2SO4 to add to bring the pH down to below 10. Is this possible to calculate?
...as we know nothing about accuracy of the initial numbers. They give a simple way of finding the order of magnitude type answer, but not the exact value.
for a pH of 10 you need 542.9mol so you can see a tiny change at this levels makes a huge difference in pH.
Just for numbers sake, that works out to about 18.865L of 25% H2SO4 by weight (about28.78M). Someone on the board should probably check these numbers too,
1.1783 g/mL, 3.00M.
I couldn't find a good density for 25% wt H2SO4, but did find that baterry acid is typically a little more concentrated- it does appear that the molarity would not be as high as 28M since 100% H2SO4 is given as 18M.