Question

A sample of AlCl3 has a mass of 35.6g

What is the molar mass?
a. How many formula units of AlCl3 are there?
b. How many aluminum ions are there?
c. How many chloride ions are there?
d. What is the mass of one formula unit of aluminum chloride?

Answer 1

The molar mass of AlCl3 is 133.33 g/mol. To find the number of formula units, aluminum ions, chloride ions, and the mass of one formula unit, specific calculations are involved.

Step-by-step explanation:

The molar mass of AlCl3 is 133.33 g/mol. To determine the number of formula units of AlCl3, divide the mass of the sample by the molar mass. To find the number of aluminum ions, multiply the number of formula units of AlCl3 by the number of aluminum ions in each formula unit. Similarly, to find the number of chloride ions, multiply the number of formula units of AlCl3 by the number of chloride ions in each formula unit. Finally, to find the mass of one formula unit of aluminum chloride, divide the molar mass of AlCl3 by Avogadro's number.