The Heat of Solution of Calcium Chloride CaCl₂ Is -82

question 89

Multiple Choice

The heat of solution of calcium chloride CaCl₂ is -82.8 kJ/mol, and the combined heats of hydration of 1.00 mole of gaseous calcium ions and 2.00 mole of gaseous chloride ions is -2327 kJ. What is the lattice energy of calcium chloride

• A) 2,144 kJ/mol
• B) 2,244 kJ/mol
• C) 2,344 kJ/mol
• D) 2,444 kJ/mol
• E) None of the above

---

Definitions:

Greatest Common Factor

The largest number that divides two or more numbers without leaving a remainder, used in simplifying fractions.

Numerator

The top number in a fraction that indicates how many parts of a whole are taken.

Denominator

The bottom number in a fraction, representing the total number of parts the whole is divided into.

Systolic Blood Pressure

The highest pressure in the arteries when the heart beats, indicating the force at which blood is pumped around the body.