Question

1. An aqueous solution is neutral when 

•  [H⁺] and [OH^-] are zero. 

•  there are no ions in the solution. 

•  the solution has no impurities. 

•  [H⁺] and [OH^-] are equal.

2. Calculate the pH of a 0.525 M NH₃ solution.NH₃ has a k_b = 1.8 x 10^{-5 .}

 pH = _______ 

3. What is the pH of an aqueous solution with a hydrogen ion concentration of [H⁺] = 3.2 x 10^-6 M?

4. What is the pH of a 8.6 x 10^-8 M solution of HCl(aq) at 25 °C? 

Report your answer to the hundredths place.

 pH = _______ 

5. Calculate the hydronium ion concentration, [H₃O⁺], for a solution with a pH of 6.46. 

 [H₃O⁺] = _______ M

Answer 1