Problem: Determine the [H3O+] in a 0.265 M HCIO solution. The Ka of HCIO is 2.9 x 10-8.A) 1.1 × 10-10 M B) 8.8 × 10-5 M C) 4.9 × 10-4 M D) 7.7 × 10-9 M E) 1.3 × 10-6 M

FREE Expert Solution

Equilibrium reaction:        HClO(aq) + H2O(l)  ClO-(aq) + H3O+(aq) 


Step 1: Construct an ICE chart for the reaction.


Step 2: Write the Ka expression and calculate for Ka.

Ka=productsreactantsKa=[ClO-][H3O+]HClO

Solids and liquids are not included in the expression



Step 3: Calculate the equilibrium concentrations.

Ka=xx0.265-x2.9×10-8=x20.265-x

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Problem Details

Determine the [H3O+] in a 0.265 M HCIO solution. The Ka of HCIO is 2.9 x 10-8.

A) 1.1 × 10-10

B) 8.8 × 10-5

C) 4.9 × 10-4

D) 7.7 × 10-9

E) 1.3 × 10-6 M

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