PHPO Basa.or Acidic, Neutral? State whether the solution in the first row is aci

Question

PHPO Basa.or Acidic, Neutral? State whether the solution in the first row is acidic, basic, or neutral. 2.6 × 10-6 M O acidic O basic 0 neutral 3.92 1.5 × 10-5 M 1.00 Submit Request Answer Part F State whether the solution in the second row is acidic, basic, or neutral. O acidic O basic neutral Request Answer Part Acidic, H,o1OHPH POH Basic, or Neutral? State whether the solution in the third row is acidic, basic, or neutral. 2.6 × 10-6 M O acidic O basic O neutral 3.92 1.5 x 10-M 1.00 Submit Part H State whether the solution in the fourth row is acidic, basic, or neutral. acidic basic neutral

Explanation / Answer

Part E

[OH-] = 2.6*10^-6 M

pOH = - log [OH-] = - log (2.6*10^-6)

= 5.86

pH = 14 - pOH = 14 - 5.86 = 8.14

pH > 7 (basic)

pH = - log [H3O+]

[H3O+] = 10^-pH = 10^-8.14 = 7.24 x 10^-9 M

First row is basic

Part F

pH = 3.92

pH < 7 (acidic)

pOH = 14 - pH = 14 - 3.92 = 10.08

pOH = - log [OH-]

[OH-] = 10^-pOH = 10^(-10.08) = 8.32 x 10^-11 M

[H3O+] = 10^-pH = 10^-3.92 = 1.2 x 10^-3 M

Second row is acidic

Part G

[H3O+] = 1.5 x 10^-5 M

pH = - log [H3O+] = - log (1.5 x 10^-5)

pH = 4.82

pH < 7 (acidic)

pOH = 14 - 4.82 = 9.18

[OH-] = 10^-pOH = 10^(-9.18) = 6.61 x 10^-10 M

Third row is acidic

Part H

pOH = 1

[OH-] = 10^-pOH = 10^(-1) = 10^-1 M

pH = 14 - 1 = 13

pH > 7 (basic)

[H3O+] = 10^-pH = 10^-13 M

Fourth row is basic

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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