[Ipassedthisclass]

1. The shell of a crustacean is primarily made of Calcium carbonate. As ocean acidification becomes more of a problem in our climate, crustaceans are suffering from habitat destruction.
H2O (l) + HCO3- ←→ H3O+ (aq) + CO32- (aq)           Ka = 4.7 x 10-11
You take a 1.0-Liter sample of ocean water and determine that there are 8.127 x 1017 molecules of HCO3-.  What will be the pH of the ocean based on this sample?

2. Sodium Nitrate mixes with potassium carbonate in a solution of water. Write out the ionic equation.

3. Sulfurous acid is added to water. Write out the ionic equation.

[Aldebaran]

Rules of this forum require that you demonstrate your own attempts at the questions first rather than just asking someone to do your homework for you.

[Vidya]

1. The shell of a crustacean is primarily made of Calcium carbonate. As ocean acidification becomes more of a problem in our climate, crustaceans are suffering from habitat destruction.
H2O (l) + HCO3- ←→ H3O+ (aq) + CO32- (aq)           Ka = 4.7 x 10-11
You take a 1.0-Liter sample of ocean water and determine that there are 8.127 x 1017 molecules of HCO3-.  What will be the pH of the ocean based on this sample?

You need to review how to get pH of weak acids using RICE table.

. Sodium Nitrate mixes with potassium carbonate in a solution of water. Write out the ionic equation.

3. Sulfurous acid is added to water. Write out the ionic equation.

Start with strong electrolytes and weak electrolytes .