HCI ionizes completely in water. What is the [H^+] and [OH] of a 0.01 M solution

Question

HCI ionizes completely in water. What is the [H^+] and [OH] of a 0.01 M solution of HCI? What is the pH? Assuming 10% ionization, what is the (H^+] and [OH] of a 0.001 M solution of H_2CO_j? What is the pH? Is the hydrogen ion concentration of a pH 3.8 solution higher or lower than that of a solution with a pH of 6.2? If solution A contains 1 times 10^6 M H^+ ions and solution B contains 1 times 10^8 M H^+ ions, which solution is more acidic? Make a statement relating hydrogen ion concentration to the acidity of a solution. Make a statement relating hydrogen ion concentration to the basicity of a solution. HA is an acid that ionizes 10% in solution. What is the [H^+] of a 0.01 M solution of HA? What is its pH?

Explanation / Answer

Ans 1.

HCl is a strong acid , that completely ionises in water

So 0.01 M HCl will ionise into 0.01 M H+ ions and 0.01 M chloride ions

So [H+] = 0.01 M or 1x 10-2 M

kw = [H+] [OH-] = 1 x 10-14

[OH-] = 1x 10-14 / 10-2

[OH-] = 10-12 M

pH = -log [H+]

pH = -log 10-2

pH = 2

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.