
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 mass fraction of potassium sulfate in the original solution:

$$
\omega\left(K_{2} \mathrm{SO}_{4}\right)=\frac{m\left(K_{2} \mathrm{SO}_{4}\right) \cdot 100 \%}{m_{\mathrm{p}-\mathrm{pa}}\left(K_{2} \mathrm{SO}_{4}\right)}=\frac{2,61 \cdot 100 \%}{160}=1,63 \%
$$

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