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

Distinguish among different feedback sources and their importance in performance management.

Acknowledge the role of specific methodological approaches in minimizing rating biases and errors.

Comprehend the necessity of aligning individual performance measures with organizational goals.

Understand the concept of the t-statistic and its role in hypothesis testing.