Describe the relationship between ph and dissolved oxygen
Answers
The relationship is not a direct one; rather it is between ions formed in water.
In most compounds there is a positive ion(+) that is strongly attracted to a negative ion(-). The same is true for water. In a mass of water the ionic compounds quickly break apart to form OH+ and H- .
This is one of the reasons that water is such a good solvent. Both H- and OH+ are very active and eager to go to work on compounds in the water. Water is already somewhat acidic and ready to dissolve things. Add any further acid and you’ve got a very good cleaner. Think of adding a bit of vinegar to clean glass. It’s hard to think of anything better.
In glass cleaning you want to leave no chemical residue or harsh cleaners. They will leave water spots. So you use soft water and a bit of vinegar and keep cleaning till the glass is dry.
In our oceans, water is already close to being acidic, add other things dissolved in water and you’ve got a bad situation. Adding extra oxygen (O2) is not going to make the water more acidic because the one O is strongly bound to the other in dioxygen or molecular oxygen. Adding carbon dioxide will create a weak acid. And with today’s warmth and the acidity of carbon dioxide in water and we have the possibility of mollusks being unable to form proper shells.
I hope this simplified explanation is helpful.