
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
Determine the quantity of air substance.

$$\mu = \frac{1}{2} (1^{2} \cdot \mathrm{C}_{\mathrm{Na}+} + 1^{2} \cdot \mathrm{C}_{\mathrm{Cl}}) = \frac{1}{2} (1^{2} \cdot 0.01 + 1^{2} \cdot 0.01) = 0.01$$

Hence, $\mu = \mathrm{C}$.

Given the average activity coefficient $f = 0.89$, calculate:

$$a \mathrm{Na}^{+} = a \mathrm{Cl}^{-} = 0.01 \cdot 0.89 = 8.9 \cdot 10^{-3} \text{ mol/L}$$.

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