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Salt is added to a solution of salt water. After stirring, the salt dissolves.  This indicated that the initial solution was 

Which of the following is a weak acid? 

The concentration of H+ ions in a solution is 1.0 x 10-9. What is the pH of the solution?

The concentration of H+ ions in a solution is 1.0 x 10-6. What is the pH of the solution?

A solution has a pH of 1. Which of the following best describes the solution?

The concentration of H+ ions in a solution is 1.0 x 10-6. What is the pH of the solution?

The concentration of H+ ions in a solution is 1.0 x 10-6. What is the pH of the solution?

A solution has a pH of 1. Which of the following best describes the solution?

If the concentration of OH- ions in a solution is 4.0 x 10-11 M, what is the concentration of H3O+?

Predict whether or not the following compound will be soluble or insoluble in water.