Every number on that scale is ten times stronger or weaker than the one next to it. A pH of 6 is ten times more acidic than a pH of 7. A pH of 5? That’s one hundred times more acidic. Whoa.
Your stomach acid? That’s like a 2. Very acidic. That’s why it can dissolve a taco. Bleach is around a 13. Please do not drink bleach. We’re just establishing the extremes here.
