pH Example Moles per liter of: H OH 0 10 Volcanic soils. waters Gastric fluids 10 10 13 Lemon juice Acid mine drain 10210-12 Vinegar Increasing 3 Rhubarb 10 11 10-1 acidity Peaches 4 Acid soil 10-10 Tomatoes 5 American cheese 10 10 age Peas 10 8 Corn, salmon, shrimp Neutrality pUre water 10-710 8 Seawate 10 9 Very alkaline 10 10 5 natural soil 10 Alkaline lakes 10 10 Increasing Soap solutions alkalinity 11- Household ammonia 10-11 10-3 Extremely alkaline 12 soda lakes 10-12 102 Lime(saturated solution) 13 10 10-141