Make Solution With pH 4.0 using Sulfuric Acid

Hi,

I am working on my science fair project which is observing how acid rain causes corrosion of rocks. I want to make an acid rain solution using distilled water and sulfuric acid. The sulfuric acid I will be using is concentrated acid 18M (molar) and 36N (normal). It has concentration of 95-98% H2SO4. What is the ratio of the amount of sulfuric acid per milliliter of water to get a solution with pH of 4.0-4.3?


Please help.

I did not find the right solution from the internet.

References:-
www.sciencebuddies.org/science-fair-proj...viewtopic.php?t=4286
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Thanks