A Solution of 0

question 45

Multiple Choice

A solution of 0.100 mol of Ca²⁺ was mixed with 0.200 mol Cl^- ions and CaCl₂ was precipitated: Ca²⁺ + 2Cl^-→ CaCl₂
The temperature of the solution is increased by 21.00°C. What was the mass of the solution reacted if the enthalpy change for the production of 1 mol of CaCl₂ is 176.0 kJ? (Assume that the solution has the same specific heat as water) ?

• A) 11.00 g
• B) 100.0 g
• C) 150.0 g
• D) 200.0 g
• E) 250.0 g

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Definitions:

Kilometers

A unit of length in the metric system equal to 1,000 meters, often used to measure distances between geographical locations.

Meters

The base unit of length in the International System of Units (SI), equivalent to 100 centimeters or approximately 39.37 inches.

Millimeters (Mm)

A unit of length in the metric system equal to one thousandth of a meter.

Inches

A unit of measurement in the Imperial system equal to 1/12th of a foot.