Question

0.10 M NaOH Is it molecular or Ionic? Is it a strong, weak, or nonelectrolyte? Is...

0.10 M NaOH

Is it molecular or Ionic?

Is it a strong, weak, or nonelectrolyte?

Is it acidic, Basic, or nuetral? (HBtB test)

A) ionic dissociation, molecular ionization, or molecular dissolution Equation:

B) additional hydrolysis equation (if needed to explain HBtB results)

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Homework Answers

Answer #1

a) NaOH is a Ionic compound. In consisting of Cation Na+ and an anion HO-.

b) NaOH is strong electrolyte. In aqueous medium NaOH readily ionizes as,

NaOH (aq) Na+ (aq) + HO- (aq)

c) Aqueous solution of NaOH is basic. The aqueous solution of NaOH due to complete ionization of naOH is reach in HO- concentration. Hence aq. NaOH is basic solution.

For 0.10 M NaOH

[HO-] = [NaOH] = 0.10 M

pOH = -log[HO-] = -log(0.10) = 1

pH = 14.0 - pOH = 14.0 - 1.0 = 13.0

d) No hydrolysis of ay species occurs in aq. NaOH solution.

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