
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
At a certain temperature, the concentration of $c(\text{H}^+)$ in pure water is $5.0 \times 10^{-7} \text{mol/L}$. At this temperature, find the concentration of $c(\text{OH}^-)$ in mol/L. Under the same conditions, the pH values of three dilute solutions: ① NaHCO$_3$(aq), ② CH$_3$COONa(aq), and ③ NaClO(aq) are found to be the same. Arrange their molar concentrations in descending order.

Present the answer in LaTex format: \boxed{Your answer}
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