Need some help, as I'm new to chemistry.
Let's suppose I had one cup of water, which had a pH level of 6.5. I also have phosphoric acid at 10% concentrate.
I need to know how much phosphoric acid would be a realistic amount to use to reduce the pH level of the water, and how much that amount would reduce it by.
I'm looking for an amount that could reduce the pH of the water by about 1 per increment. I realize that phosphoric acid might not be the best item to use for this task, but it's required.a
I'm really not sure how strong phosphoric acid is, so if 10% sounds absurd for one cup of water, feel free to give me recommendations.
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