- #1

rachelmaddiee

- 67

- 5

- Homework Statement
- I need help with a question

- Relevant Equations
- N/A

mass = 37.2 g AICI3 (given)

number of ions = AI3+ Ions (unknown)

number of ions = CI- Ions (unknown)

mass = g/formula unit AICI3 (unknown)

The ratio of AI3+ Ions to CI- Ions is 1:3

Molar Mass AICI3

(1 x 26.98 g/mol AI) + (3 x 35.45 g/mol CI) = 133.33 g/mol AICI3

molar mass = 133.33 g/mol AICI3

Divide the given mass of aluminum chloride by its molar mass.

37.2 AICI3/133.33 mol = 0.279 mol AICI3

Is this correct?

number of ions = AI3+ Ions (unknown)

number of ions = CI- Ions (unknown)

mass = g/formula unit AICI3 (unknown)

The ratio of AI3+ Ions to CI- Ions is 1:3

Molar Mass AICI3

(1 x 26.98 g/mol AI) + (3 x 35.45 g/mol CI) = 133.33 g/mol AICI3

molar mass = 133.33 g/mol AICI3

Divide the given mass of aluminum chloride by its molar mass.

37.2 AICI3/133.33 mol = 0.279 mol AICI3

Is this correct?