pH Application

Poll

Why does pH matter?

• It doesn't.

• It is good trivia to know.

• It was a fun lab to do.

• It can help us make healthy choices.

Multiple Select

The pH of water is an abiotic factor for aquatic organisms.

Why is acid rain a problem for the organisms?

(click all that apply)

• It gives the water a pH lower than their tolerance.

• It makes the water they live in more acidic.

• It makes the water they live in more alkaline (basic).

• It gives the water a pH higher than their tolerance.

Dropdown

Soil pH is ​

Select answer

Factor that you ​

Select answer

change to grow healthy plants.

Match

Antacid tablets + Stomach acid --> Magnesium salt + water

Mg(OH)₂ + 2HCl --> MgCl₂ + H₂O

Match the compound with its pH:

• H₂O

• 2HCl

• Mg(OH)₂

• MgCl₂

pH 7

pH 1 - 2

pH 10

pH 7.5

• pH 7

• pH 1 - 2

• pH 10

• pH 7.5

Multiple Select

Antacid tablets + Stomach acid --> Magnesium salt + water

Mg(OH)₂ + 2HCl --> MgCl₂ + H₂O

Which 2 things are true about the salt?

• It is made of ions.

• It has ionic bonds.

• It is a polar molecule.

• It has covalent bonds.

Multiple Select

Antacid tablets + Stomach acid --> Magnesium salt + water

Mg(OH)₂ + 2HCl --> MgCl₂ + H₂O

Which 2 things are true about the water in this formula?

• It is made of ions.

• It has ionic bonds.

• It is a polar molecule.

• It has covalent bonds.

Poll

So what do you think now...

Why does pH matter?

• It doesn't.

• It is good trivia to know.

• It was a fun lab to do.

• It can help us make healthy choices.