Chlorisondamine chloride $\left(\mathrm{C}_{14} \mathrm{H}_{20} \mathrm{Cl}_{6} \mathrm{N}_{2}\right)$ is a drug used in the treatment of hypertension. A 1.28-g sample of a medication containing the drug was treated to destroy the organic material and to release all the chlorine as chloride ion. When the filtered solution containing chloride ion was treated with an excess of silver nitrate, 0.104 g silver chloride was recovered. Calculate the mass percent of chlorisondamine chloride in the medication, assuming the drug is the only source of chloride.

Using the given information and following the steps above, we can calculate the mass percent of chlorisondamine chloride in the medication. 1. Calculate the mass of Chloride ions by using the mass of silver chloride: \(m_{\mathrm{Cl}} = \frac{(0.104\ \mathrm{g}) \times (35.45\ \mathrm{g/mol})}{143.32\ \mathrm{g/mol}} = 0.0253\ \mathrm{g}\) 2. Calculate the moles of Chloride ions: \(n_{\mathrm{Cl}} = \frac{0.0253\ \mathrm{g}}{35.45\ \mathrm{g/mol}} = 7.14 \times 10^{-4}\ \mathrm{mol}\) 3. Calculate the moles of chlorisondamine chloride: \(n_{\mathrm{drug}} = 7.14 \times 10^{-4}\ \mathrm{mol}\). 4. Calculate the mass of chlorisondamine chloride: \(m_{\mathrm{drug}} = (7.14 \times 10^{-4}\ \mathrm{mol}) \times (448.92\ \mathrm{g/mol}) = 0.320\ \mathrm{g}\) (molar mass of chlorisondamine chloride, \(M_{\mathrm{drug}} = 448.92\ \mathrm{g/mol}\)) 5. Calculate the mass percent of chlorisondamine chloride in the medication: \(\text{Mass Percent} = \frac{0.320\ \mathrm{g}}{1.28\ \mathrm{g}} \times 100 = 25.0\%\) The mass percent of chlorisondamine chloride in the medication is \(25.0\%\).