What is the difference between a strong acid and a weak acid? Strong acids completely dissociate in water, while weak acids only partially dissociate in water. Strong acids have a lower pH than weak acids. Strong acids are more soluble in water than weak acids. Strong acids are more reactive than weak acids.

A student is given a concentrated solution that is supposed to contain vinegar, a weak acid. Which of the following experimental tests would best support the claim that the solution is a weak acid rather than a strong acid?

+ Acid-Base Properties of Salt Solutions Salt is an ionic compound that is produced when a cation and an anion from an acid-base reaction combine, and solutions of salts can be neutral, acidic, or basic, depending on the acid-base properties of the constituent cations and anions. Since strong acids and bases completely ionize in solution, the reaction essentially runs to completion forming the salt. Therefore, salts formed by reaction of a strong acid with a strong base are neutral. NaCl formed by the neutralization of NaOH and HCl is a neutral salt. Salts formed by reaction of a strong acid with a weak base are acidic, and salts formed by reaction of a weak acid with a strong base are basic. This is due to the equilibrium the conjugate has with its acid or base. For example, sodium bicarbonate NaHCO3 contains the conjugate of the weak acid H₂CO3. The conjugate will reform the acid through the equilibrium HCO3(aq) + H₂O(aq) = H₂CO3(aq) + HO (aq) and, thus, acts as a weak base. A…

The pH of an aqueous solution at 25°C was found to be 4.90. The pOH of this solution is . The hydronium ion concentration is M. The hydroxide ion concentration is M.

2,4,7,8

The pH of a basic solution is 12.59. What is [OH⁻]?

The pH of an aqueous solution at 25°C was found to be 8.90. The pOH of this solution is  The hydronium ion concentration is       M. The hydroxide ion concentration is        M.

The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid H₂PO4 H Br H₂S HCIO₂ strong or weak? weak strong weak weak species present at 10-6 mol/L or greater when dissolved in water 0 0 0 0 X 0,0,... Ś

A solution is prepared and the resultant pH = 12. What is the pOH of the solution? 12 8 -2 2

Compared with a solution that has a pH of 3.0, a solution that has a pH of 1.0 contains: twice as many hydronium ions. half as many hydronium ions. 100 times as many hydronium ions. 1 times as many hydronium ions. four times as many hydronium ions.