Question #104024
An Unknown compound contains only 2 elements, platinum (Pt) and chlorine (Cl). S pure 5 g sample of the compound is analyzed and found to contain 2.105 g Cl.
A.) What percentage of the compound is Cl?
B.) Determine the empirical formula of the compound
C.) Gravimetric analysis confirms that in the 5 g sample there are .0148 mol present. Determine the molar mass of the compound.
D.) What is the molecular formula of this compound?
A.) What percentage of the compound is Cl?
B.) Determine the empirical formula of the compound
C.) Gravimetric analysis confirms that in the 5 g sample there are .0148 mol present. Determine the molar mass of the compound.
D.) What is the molecular formula of this compound?
Expert's answer
А.
2.105 x 100/5 = 42.1%.
B. 2.105/35.5 : 2.895/195 = 4:1
PtCl4
C. 5/0.0148= 337.837838 g/mol.
D. PtCl4
