Questions: FeCl3 mass % of Fe, Cl = % TiO2 mass % of Ti, O = %

Solution Steps

First, we need to find the molar mass of FeCl\(_3\). The atomic masses are:

• Fe: 55.845 g/mol
• Cl: 35.453 g/mol

The molar mass of FeCl\(_3\) is: \[ \text{Molar mass of FeCl}_3 = 55.845 + 3 \times 35.453 = 55.845 + 106.359 = 162.204 \, \text{g/mol} \]

Next, we calculate the mass percent of each element in FeCl\(_3\).

For Fe: \[ \text{Mass percent of Fe} = \left( \frac{55.845}{162.204} \right) \times 100 = 34.43\% \]

For Cl: \[ \text{Mass percent of Cl} = \left( \frac{3 \times 35.453}{162.204} \right) \times 100 = 65.57\% \]

Now, we find the molar mass of TiO\(_2\). The atomic masses are:

• Ti: 47.867 g/mol
• O: 15.999 g/mol

The molar mass of TiO\(_2\) is: \[ \text{Molar mass of TiO}_2 = 47.867 + 2 \times 15.999 = 47.867 + 31.998 = 79.865 \, \text{g/mol} \]

Next, we calculate the mass percent of each element in TiO\(_2\).

For Ti: \[ \text{Mass percent of Ti} = \left( \frac{47.867}{79.865} \right) \times 100 = 59.96\% \]

For O: \[ \text{Mass percent of O} = \left( \frac{2 \times 15.999}{79.865} \right) \times 100 = 40.04\% \]

Final Answer